Environmental Hazards

Hazards are random chance environmental modifiers, hull breaches, and encounters, which can increase the difficulty of the mission.

Self-Destruct
In this hazard, patches of fire are scattered across the map. Standing on the fire for longer than one second will damage the player. Enemies will be alert from the very start of the mission, even if the player has not been spotted yet. Some lootable corpses will also be scattered around the map. Note that the Self-Destruct hazard is different from the Timed Extraction event. There is no timer.

Cryogenic Leakage
In this hazard, the maximum amount of shields will be lowered by 50% for the duration of the mission. Patches of ice are scattered across the map for aesthetic effect. Shield decrease affects both the players and enemy units.

Atmospheric Vent
Unlike the previous two hazards, this one occurs when a breakable window has been broken, either by bullets, melee, or an explosion. The occurrence of an atmospheric vent can be identified by the screen going blurry, and sound getting a lot softer and silent due to the vacuum. Both the player's and enemies shields will start draining, or their health if their shield is already depleted. Breakable windows that can cause an atmospheric vent hazard to occur are identified as "Reinforced Glass" when pointed at and has a HP bar.

In order to stop an atmospheric vent, you have to hack a nearby console to raise shields up over the broken window. This can normally only be triggered on spaceship levels. An atmospheric vent can sometimes be strategically triggered to lockdown a horde of enemies in what is literally a death chamber, as the event often locks down the room where the window was, though it is extremely inefficient.

Stalker
The stalker will occasionally ambush a player to take revenge for the death of a boss.