Camos and 2D-leaves shouldnt be the only way to survive in the environment. Example:In Inf-Frozen the pipes should be letting off skin burning steam to your enemies when you shoot it and if u shoot an extinguisher it should let off a smoke to confuse your enemies,somthing like a smoke grenade. Blasting off lights in the night maps should make it darker and makes it harder to be seen. Its more realistic if the evironment can be used to be a way to survive.