Re: Caustic buff
@BigBlackCausticyeah, also blue colored gas should be team gas and lime or orange enemy. Kind of like the gibby shield/gun shield.
Edit: either the tactical button sets off all traps (H by default, the same button you use to toggle gibby shield and control mirage decoys ect.), or when he looks in the direction of the trap and presses the button it sets off that trap specifically, as if you were a wattson extending a fence.