i think that even though bungie made some tricks to make better maps into halo 3 into tools that we can go even furthur in finding new and better...
its a vibration trap
ive been making maps of these traps they are called vibration traps if you wanna work on some together my gamertag is my forum name just type it...
no i think your thinking of violent kids that play violent games that kill people or just insane people