You can go full cheese by maxing nades (radius and anti shield on the arc ones, split grenades on the homing ones), power damage and being fitneless. Launch fist the arcs, then homings for tech bursts. Choose extra grenade on Pylon, and equip a light weapon (maybe pistol with power mod). This way you can "spam" Pylon, and each time you deploy it you'll instantly have 2 nades. And, by deploying the Pylon, the old one explodes causing damage to enemies. This way you can kill someone with your pylon and get the achievement "incompetent engineer".
