Personally, I want to give him a berserker. Redline, load it up, charge it in, boost to hit, watch the fireworks. If it blows up, money. If it doesn't, whatever, walk around popping things with a fully boosted handcannon. If you need the zerker to keep smashing stuff, upkeep redline. If not, it can run for free, so run it around blocking charge lanes, clogging up infantry lines, and being a giant nuisance.