潜行系统概述 / Stealth System Overview#

《最后生还者第二部》的潜行系统是该系列有史以来最复杂和细腻的。在绝大多数遭遇战中，潜行不仅是可选项，更是最优解——尤其是在高难度下。 The Last of Us Part II features the most complex and nuanced stealth system in the series’ history. In the majority of encounters, stealth is not just an option but the optimal solution — particularly on higher difficulties.

潜行的核心原则是避免被察觉。系统基于多个变量判断敌人是否发现玩家：能见度、声音、距离、敌人警觉状态以及时间。 The core principle of stealth is avoiding detection. The system evaluates multiple variables to determine whether enemies detect the player: visibility, sound, distance, enemy alert status, and time.

警觉阶段 / Alert Phases：敌人有三个警觉状态——平静（白色轮廓，正常巡逻）、怀疑（黄色轮廓，正在调查异常）、战斗（红色轮廓，已发现玩家并发起攻击）。 Enemies have three alert states — Calm (white outline, normal patrolling), Suspicious (yellow outline, investigating anomalies), Combat (red outline, detected player and attacking).

从怀疑到战斗之间有一段灰色窗口：如果玩家迅速离开怀疑区域或杀死触发怀疑的对象，敌人会在短暂搜索后恢复平静。这一机制是反复尝试潜行的关键。 There is a gray window between suspicion and combat: if the player quickly leaves the suspicion zone or kills the source of suspicion, enemies will return to calm after a brief search. This mechanic is key to repeated stealth attempts.

聆听模式详解 / Listen Mode Analysis#

聆听模式是潜行的基础工具。它揭示了墙壁后面的敌人位置和状态。 Listen Mode is the foundational tool for stealth. It reveals enemy positions and states through walls.

基础用法 / Basic Usage：按住R1进入。消耗能量条（约10秒持续使用后需要冷却）。显示敌人轮廓和移动方向。红色轮廓立即表明已被发现。 Hold R1 to enter. Consumes an energy bar (approximately 10 seconds of continuous use requires cooldown). Displays enemy outlines and movement direction. Red outline immediately confirms detection.

地形限制 / Terrain Limitations：聆听模式无法穿过极厚的墙壁或地板。地面上下层的敌人需要更近的距离才能探测。水中无法使用聆听模式。 Listen Mode cannot penetrate extremely thick walls or floors. Enemies on different floors require closer range to detect. Cannot be used while in water.

战术应用 / Tactical Application：

• 巡逻路线测绘：观察1-2轮完整的巡逻周期 / Patrol route mapping: observe 1-2 complete patrol cycles
• 确认掩体后的敌人是否在查看你的方向 / Confirm whether enemies behind cover are looking in your direction
• 判断敌人是否被诱饵吸引 / Determine whether enemies are attracted by decoys
• 高难度下配合听力替代视觉信息 / On higher difficulties, combine with audio to替代 visual information

各难度影响 / Difficulty Impact：

• 轻量/适中：范围约15-25米，冷却极短 / Very Light/Moderate: approximately 15-25m range, very short cooldown
• 生存：范围约8米，需要3秒冷却 / Survivor: approximately 8m range, 3-second cooldown
• 绝地：完全禁用 / Grounded: completely disabled

草丛潜行与高草丛 / Grass Stealth and Tall Grass#

高草丛机制 / Tall Grass Mechanics：进入高草丛后，玩家进入半不可见状态。敌人不会看到在草丛中的玩家，除非距离小于约3米（取决于难度和敌人警觉度）。 After entering tall grass, the player enters a semi-invisible state. Enemies will not see players in grass unless within approximately 3 meters (depending on difficulty and enemy alertness).

草中移动 / Movement in Grass：

• 步行：无声，几乎不可能被发现 / Walking: silent, almost impossible to detect
• 奔跑：产生声音，会引发怀疑 / Running: creates noise, triggers suspicion
• 匍匐：完全无声，草叶晃动最小 / Prone: completely silent, minimal grass movement

连锁潜行 / Chain Stealth：使用弓箭从草丛中击杀一个敌人，然后立即转移到另一片草丛。如果敌人前来调查尸体，可以在新草丛中击杀。这种战术可以逐个消灭整个区域的敌人。 Use the bow from grass to kill one enemy, then immediately relocate to another grass patch. If enemies come to investigate the body, kill them from the new position. This tactic can eliminate an entire area’s enemies one by one.

草地燃烧 / Burning Grass：注意某些场景中敌人可能使用燃烧瓶或火焰箭点燃草丛。一旦草地着火，必须立即转移。 Note that in some scenarios, enemies may use Molotovs or fire arrows to ignite grass. Once the grass is on fire, you must relocate immediately.

潜行击杀技巧 / Stealth Kill Tips#

背后暗杀 / Back Assassination：从背后接近未被警觉的敌人即可触发暗杀动画。不同姿态（站立、蹲伏、匍匐）有不同的暗杀动画和判定范围。 Approaching an unsuspecting enemy from behind triggers an assassination animation. Different stances (standing, crouching, prone) have different assassination animations and判定 ranges.

高处刺杀 / Vertical Assassination：从边缘或高处跳下攻击下方敌人触发特殊刺杀。可节约大量时间。 Jumping from ledges or heights to attack an enemy below triggers a special assassination. Can save significant time.

诱饵刺杀 / Lure Assassination：投掷瓶子或砖块吸引敌人到指定位置，然后在掩体后伏击。最佳位置：拐角、门后、高草丛边缘、桌子下面。 Throw bottles or bricks to lure enemies to a designated location, then ambush from behind cover. Best positions: corners, behind doors, grass edges, under tables.

匍匐刺杀 / Prone Assassination：从匍匐状态突袭站立的敌人——动画中玩家会从地上跃起刺杀。匍匐状态进入潜行的距离判定更宽松。 从 prone position surprise attack a standing enemy — the animation shows the player leaping up from the ground to assassinate. The distance判定 for stealth from prone is more lenient.

水中暗杀 / Water Assassination：玩家藏在水中时，可以将岸边敌人拉入水中暗杀。这是无声且不会惊动其他敌人的高效手段。 When hiding in water, players can pull shoreline enemies into the water for assassination. This is silent and不会 alert other enemies.

声音引敌策略 / Sound Lure Strategies#

声音是潜行的核心工具。游戏中的声音系统极其精细，不同材质表面产生不同音量和传播距离。 Sound is a core stealth tool. The game’s sound system is extremely detailed, with different surface materials producing different volumes and propagation distances.

诱饵类型 / Lure Types：

• 砖块：撞击软表面（草地、泥土），声音较小 / Brick: soft surfaces (grass, dirt), quieter sound
• 瓶子：撞击硬表面（混凝土地面、金属），声音大且传播远 / Bottle: hard surfaces (concrete, metal), loud and far-reaching
• 箭矢撞击：极小声，只引起近距离注意 / Arrow impact: very quiet, only attracts attention at close range

声音引敌执行 / Execution：

1. 确定一个敌人脱离群体巡逻路线 / Identify an enemy who separates from group patrol routes
2. 投掷诱饵到可以安全伏击的位置 / Throw decoy to a位置 suitable for ambush
3. 敌人会走向诱饵并短暂检查 / Enemy walks to the decoy and briefly inspects it
4. 在敌人检查诱饵时从背后暗杀 / Assassinate from behind while the enemy inspects the decoy
5. 将尸体拖入草丛（如果有此机制）/ Drag body into grass (if the mechanic is available)

连锁引敌 / Chain Luring：如果一个区域敌人密集，可以先用第一个诱饵引走最近的敌人，暗杀后再用第二个诱饵引走下一个，以此类推。注意每次暗杀后敌人的警觉度会逐步提高。 If an area is dense with enemies, use the first decoy to lure the nearest enemy, assassinate, then use a second decoy for the next, and so on. Note that enemy alertness increases progressively after each assassination.

匍匐潜行 / Prone Stealth#

匍匐是第二部中新增的潜行维度，彻底改变了潜行的策略深度。 Prone is a new stealth dimension in Part II, fundamentally changing the strategic depth of stealth.

进入与退出 / Entering and Exiting：按下匍匐键进入。注意从匍匐到起身有短暂动画硬直，被敌人发现时不要贸然起身。 Press the prone button to enter. Note that transitioning from prone to standing has a brief animation lock; do not stand up carelessly when detected.

适用范围 / Applicable Scenarios：

• 穿过低矮缝隙和通风管 / Passing through low gaps and vents
• 在车底或床底躲避搜索 / Hiding under cars or beds during searches
• 在高草丛中完全隐蔽移动 / Fully concealed movement in tall grass
• 翻越低矮障碍物时的低姿态 / Low profile when crossing low obstacles

匍匐战术价值 / Tactical Value：

• 敌人不会向下看——匍匐状态在地面高度几乎完全免疫视觉探测 / Enemies don’t look down — prone is nearly immune to visual detection at ground level
• 匍匐移动无脚步声，即使在高难度下 / Prone movement has no footstep sound, even on higher difficulties
• 可以在桌子下方或汽车底部进行暗杀 / Allows assassinations from under tables or cars

潜行路线规划 / Stealth Route Planning#

成功的潜行离不开精密的路线规划。 Successful stealth离不开 meticulous route planning.

侦察阶段 / Reconnaissance Phase：

1. 到达新区域后，先不要移动 / Upon reaching a new area, do not move
2. 使用聆听模式标记所有可见敌人 / Use Listen Mode to mark all visible enemies
3. 确认巡逻路径和死角的覆盖范围 / Confirm patrol paths and blind spot coverage
4. 找出至少两条撤退路线 / Identify at least two escape routes
5. 确定暗杀顺序：从威胁最大的目标开始 / Determine kill order: start with the highest threat targets

执行阶段 / Execution Phase：

1. 从外围敌人开始逐个清理 / Begin eliminating perimeter enemies one by one
2. 利用掩体间隙移动，不暴露在开阔地 / Move through cover gaps, avoid暴露 in open areas
3. 每次暗杀后等待10-15秒观察反应 / Wait 10-15 seconds after each kill to observe reactions
4. 如果敌人改变巡逻路线，重新评估计划 / If patrol routes change, reassess the plan

撤退计划 / Escape Plan： 始终保留一条回退路线。如果被包围，使用烟雾弹掩护撤退或爆破物开路。 Always keep one retreat route available. If surrounded, use smoke bombs for掩护撤退 or explosives to clear a path.

潜行 vs 硬刚决策 / Stealth vs Direct Combat Decisions#

潜行不是唯一选择，也不是所有场景都适合潜行。 Stealth is not the only option, nor is it suitable for all scenarios.

应该潜行的情况 / When to Stealth：

• 资源极度匮乏 / Resources are critically low
• 敌人数量远超可处理范围（>6人）/ Enemy numbers far exceed manageable range (>6)
• 有犬只在场 / Dogs are present
• 需要在后续区域探索前保持状态 / Need to conserve resources for subsequent areas
• 高难度生存模式 / High difficulty Survivor mode

应该硬刚的情况 / When to Fight：

• 已经暴露无法重新潜行 / Already detected and cannot re-enter stealth
• 场景空间狭窄无法绕行 / Area is too narrow to circumvent
• 拥有充足的弹药和医疗包 / Have充足的 ammunition and medkits
• 时间紧迫（求生欲望或挑战速通）/ Time is limited (desire for combat or speedrun challenge)

混合战术 / Hybrid Tactics：最佳玩法是动态切换。潜行进区域清掉一半敌人，然后用剩余资源进行正面战斗。这不仅高效，而且更具观赏性。 The best playstyle is dynamic switching. Stealth into an area to eliminate half the enemies, then engage the remainder in direct combat. This is not only efficient but also more visually engaging.

敌人AI行为详解 / Enemy AI Behavior Analysis#

理解敌人AI是潜行的最高境界。第二部分采用了比前作更加复杂的AI系统。 Understanding enemy AI is the highest level of stealth mastery. Part II employs a more complex AI system than its predecessor.

搜索阶段行为 / Search Phase Behavior：当敌人进入怀疑状态后，它们会执行以下步骤： When enemies enter the suspicion state, they perform the following steps:

1. 停止当前巡逻，查看最后已知玩家位置 / Stop current patrol, look at last known player position
2. 缓慢走向该位置同时左右环顾 / Slowly approach the位置 while looking left and right
3. 到达后检查角落和掩体内侧 / Upon arrival, check corners and behind cover
4. 如果没有进一步发现，返回巡逻点 / If nothing further is found, return to patrol point
5. 返回途中保持比平时更高的警觉度 / Remain at higher alert than usual during return

沟通系统 / Communication System：敌人会口头交流状态信息。如果你听到"你听到什么了吗？“表示进入了怀疑。如果听到"他在那边！“表示已经被锁定。利用这些语音提示判断是否暴露。 Enemies verbally communicate status information. If you hear “Did you hear that?” it indicates suspicion. If you hear “He’s over there!” it means you’ve been spotted. Use these voice cues to判断 exposure status.

群体战术 / Group Tactics：

• 一名敌人检查可疑位置时，其他敌人会提供掩护射击角度 / One enemy checks suspicious位置 while others provide cover fire angles
• 如果多名敌人同时搜索，它们会划分区域提高效率 / If multiple enemies search simultaneously, they divide areas for efficiency
• 发现尸体后，整个区域的敌人会进入高度戒备至少60秒 / After finding a body, the entire area’s enemies enter high alert for at least 60 seconds
• 高难度下敌人会包抄玩家，而不是直接冲过来 / On higher difficulties, enemies flank instead of charging directly

特定敌人反应 / Specific Enemy Reactions：

• WLF成员会呼叫增援并通过无线电报告 / WLF members call reinforcements and report via radio
• 塞拉菲特使用口哨和手势进行无声沟通 / Seraphites use whistles and gestures for silent communication
• 精英敌人（穿甲）不会惊慌，会持续组织搜索 / Elite enemies (armored) do not panic and continuously organize searches
• 犬只可以追踪留下的气味轨迹，即使玩家已经离开现场很久 / Dogs can追踪气味 trails even long after the player has left

装备与道具在潜行中的运用 / Equipment & Items in Stealth#

消音器 / Silencer：手枪消音器是潜行远程击杀的唯一手段。每个消音器大约可用5-8发。优先用于击杀哨兵和犬只。注意消音器不是完全无声——近距离的敌人仍然可以听到子弹击中目标的声音。 Pistol silencers are the only means of stealth ranged kills. Each silencer lasts approximately 5-8 rounds. Prioritize for killing sentries and dogs. Note that silencers are not completely silent — nearby enemies can still hear bullet impact sounds.

消音器使用技巧 / Silencer Tips：只要枪声没有直接暴露位置，敌人只会对子弹落点产生怀疑。如果一枪没有杀死目标，使用烟雾弹重新进入潜行状态。 As long as the gunshot does not directly expose your position, enemies only become suspicious of the bullet impact point. If one shot does not kill the target, use a smoke bomb to re-enter stealth.

烟雾弹 / Smoke Bomb：被发现时的终极撤退工具。投掷烟雾弹后可以强行暗杀烟雾中的敌人。在开阔地带穿越火力封锁线时也极为有用。 The ultimate retreat tool when detected. After throwing a smoke bomb, you can forcibly assassinate enemies within the smoke. Also extremely useful for crossing fire lines in open areas.

闪光弹 / Flashbang：对人类敌人有效，对感染者无效。使用闪光弹后敌人会被致盲约3-4秒，足够完成暗杀或转移位置。 Effective against human enemies but not infected. After throwing a flashbang, enemies are blinded for approximately 3-4 seconds, enough for an assassination or repositioning.

利刃陷阱 / Blade Trap：布置在敌人的巡逻路径上。踩中陷阱的敌人会发出惨叫并倒地，触发附近敌人的搜索。这是一种声东击西的高级手段——在区域远端设置陷阱，当敌人被吸引去调查时绕后偷袭。 Place on enemy patrol paths. A trapped enemy screams and falls, triggering nearby enemies to search. This is an advanced diversion tactic — place a trap at the far end of the area, then flank around while enemies are attracted to investigate.

引诱道具 / Luring Items：

• 瓶子（硬表面）：最佳远程诱饵，传播距离最远 / Bottles (hard surfaces): best long-range decoy, longest propagation
• 砖块（软表面）：近程静音诱饵，适合精准引敌 / Bricks (soft surfaces): short-range quiet decoy, suitable for precise luring
• 弓箭：利用射箭制造撞击声，可以在不暴露位置的情况下引敌 / Bow: use arrow impacts to create noise, luring enemies without exposing your position

高阶潜行技巧 / Advanced Stealth Techniques#

换位暗杀 / Relocation Assassination：暗杀一个敌人后，不要停留在原地。立刻转移到至少5米外的另一处掩体。敌人会前往尸体位置，如果你还在原地就会被新来调查的敌人发现。 After assassinating an enemy, do not stay in place. Immediately relocate to another cover at least 5 meters away. Enemies will head to the body location; if you remain in place, you will be discovered by investigating enemies.

声东击西 / Divide and Conquer：同时面对多名敌人时，在一个方向投掷引诱物，当敌人集体朝那个方向注意时，从反方向开始暗杀。这叫"注意力漏斗”——所有人的视线都集中在诱饵方向。 When facing multiple enemies, throw a decoy in one direction. When all enemies focus their attention there, begin assassinations from the opposite direction. This is called “attention funneling” —所有人的 gaze集中在 decoy direction.

尸体管理 / Body Management：尸体是潜行的最大隐患。被发现尸体会触发全域警戒。在可能的情况下，将尸体拖入草丛、床底、壁橱等隐蔽处。如果无法隐藏尸体，至少确保尸体位置不在主要巡逻路线上。 Bodies are the biggest隐患 for stealth. Discovered bodies trigger global alert. When possible, drag bodies into grass, under beds, closets, or other concealed spots. If unable to hide, at least ensure the body is not on a main patrol route.

动态出入口 / Dynamic Entry Points：很多场景提供多个出入口。进入场景前从外部绕行一周，确认所有可能的入口（窗户、通风口、地下室门）。战斗中随时可以利用不同出入口制造敌人判断失误。 Many scenes offer multiple entrances and exits. Before entering, circle the exterior to identify all possible entry points (windows, vents, basement doors). During combat, use different entry points to confuse enemy positioning.

重置潜行 / Resetting Stealth：如果被发现但成功逃脱且到达足够远处（约30米外），敌人会在搜索约45-90秒后放弃并恢复正常巡逻状态。利用这个机制可以在正面冲突失败后重新尝试潜行。 If detected but successfully escaped to a sufficient distance (approximately 30 meters), enemies will abandon the search after approximately 45-90 seconds and return to normal patrol. Use this mechanic to retry stealth after a failed direct engagement.

夜间潜行差异 / Night Stealth Differences：游戏中有部分夜间关卡。夜晚敌人的视野范围缩短约30%，但听觉不变。塞拉菲特在夜晚更加激进，但WLF的夜间巡逻路线会减少。 Some levels take place at night. Enemy vision range is reduced by approximately 30% at night, but hearing remains unchanged. Seraphites are more aggressive at night, but WLF patrol routes are reduced.

特定场景潜行策略 / Scenario-Specific Stealth#

狭窄室内 / Tight Indoor：厨房、办公室、走廊等小空间。建议使用消音手枪或弓箭逐个清理。注意门后的敌人——开门前先聆听确认位置。 Kitchens, offices, corridors. Recommended to use silencers or bows for gradual clearing. Be aware of enemies behind doors — listen before opening to confirm positions.

开阔室外 / Open Outdoor：广场、街道、公园等大空间。需要利用高草丛和废弃车辆作为移动掩体。切忌在开阔地奔跑——会被多个方向的敌人同时发现。 Plazas, streets, parks. Use tall grass and abandoned vehicles as移动 cover. Never run in the open — you will be spotted by enemies from multiple directions simultaneously.

多层建筑 / Multi-Story Buildings：商场、公寓楼。利用楼层差优势——在上层时可以清楚听到下层敌人的对话获取情报。匍匐在楼板边缘可以暗杀楼下经过的敌人。 Malls, apartment buildings. Use floor advantage — on upper floors you can clearly hear lower floor enemy conversations for intelligence. Prone at floor edges to assassinate enemies passing below.

感染者+人类混合 / Infected + Human Mixed：游戏中某些场景出现感染者与人类敌对派系同时存在的局面。这是潜行的黄金机会——投掷诱饵让两方冲突，然后坐收渔利。在双方交战时从中暗杀幸存者。 Some scenes feature infected and hostile human factions coexisting. This is a golden opportunity for stealth — throw decoys to trigger conflict between both sides, then pick off survivors. Assassinate during the crossfire.

强制战斗后的潜行重置 / Stealth Reset After Forced Combat：有些区域会被强制触发战斗（剧情动画后）。战斗结束后如果你存活且脱离视野，仍然可以重新进入潜行状态。不要假设战斗结束后就必须继续战斗。 Some areas force combat after story cutscenes. After combat ends, if you survive and break line of sight, you can still re-enter stealth. Do not assume you must continue fighting after combat is triggered.