ive never seen a gang war like you speak of take place, its always grid camping with rocket launcher and miniguns, ALWAYS. and hence the biggest gun rule, if they grid camped with a bunch of people with assault rifles and that kind of stuff it wouldnt work. and usually no matter your hp your dead in about 3-6 hits due to rockets and miniguns, even with 250 hp at a max this is still inevitable. even then your talking about people placing demolition in blind spots like this would ever work? its on a timer and even then for this to be effective it would have to be timed just right, or enemies led to the trap because theres no proximity mines or anything. i think for traps to be an effective weapon or at least usuable in a situation other then suicide bombing you would have to find a way to make the bombs more like a claymore mine, or remotely activated.