Trollcom is not meant to tank in the frontline. This is a battle/combat/tank/whatever com.
Trollcom uses troll techniques to troll your enemies. E.G a sniper with 8 range, 8 dmg, and a cloak module.
Or a Jumpy cloak com which will sneak close to your puppy unit ball regrouping behind front line, wreck them with hellfire granades, or whatever, supported by 8 dmg modules and jump away to dissapear few seconds later.
Or a cloaked support com with 8 nano modules which can, provided it Has enough storaged metal, erect a DDM right in front of your face out od nowhere, in less than 20 sec.
Tank com can be a troll one too, but it needs sth trollish. The easiest way to do it is to simply give it 8 range modules.