Reduced time to "Charge the plates" and "Hold the bridge"
Fixed explosion FX size for the cluster rocket.
Added more environment detail to level 1.
Added some environment detail to level 2.
Enemies are no longer contained to their rooms in level 2.
Slightly reduced the size of the shield for the Rusher shield variant.
Difficulty adds 1 damage per difficulty levels from enemy attacks.
Fixed an unobtainable upgrade chest in a room on level 1.
Tweaked light exposure to make it less jarring.
Ammo crates no longer spawn upgrades.