Commando/Guardian builds

I'm quite enjoying playing the commando. She plays a bit like pwnytail, but switched out shotgun for SMG (charger siphon) to use with turbocharge. Really enjoying the double warp combos (when it hits). Not sure if that's platinum viable, but it's fun on gold (don't play much platinum these days anyway).

But I don't get what to do with the guardian. He's like a weaker, less exciting juggernaut. I really like backlash, but the ASent is more fun, IMHO.