@Matter2Matter Place gas traps close to doors but not close enough that players can see/shoot them before entering, I like to open doors and place them behind the door so a player just sees an open door and walks in and instantly sets it off or I place them places where a player is likely to go but is unable to see them until its too late like behind a rock,crate, etc
I see alot of caustics just randomly throw traps down in the middle of the room and in terrible places in general without actually thinking before they are placing