I used to have a really fun archery/devices ambush blaster back in the old COH days. I'd be able to stealth up, set up trip mines in the pull path of the mobs, set a time bomb in the center of the mobs, and stand back and wait. When the time bomb went off, they'd pull into the tripmines, then I'd AOE them with rain of arrows and such. In a full group run, I'd normally be able to solo a full group of enemies. I want to remake that build, have no idea how it'd work now. I left the original back before it went FTP.