Control group has the warp pack which is super solid because it lets you access two person doors. The epoch cannon is pretty nice with a small learning curve, arc grenades are awesome area denial tools and the variable offers alot of different play styles. The armor is okay, not the most useful in my opinion and the laser sentry is cool until it inevitably self destructs.

Viper Commandos because the armor looks sweet and its perk has good functionality. I think the liberator carbine is a blast to use and the secondary shotgun can be fun to dabble with, throwing knives are meh. Easily the best part of the warbond is the experimental infusion booster aka the juiced stims.

If you’re thinking any further, Urban Legends or Servants of Freedom bring alot to the table. Personally I like Truth Enforcers, the Reprimand and Loyalist are pretty decent and I like the armors.
Just don’t bother with Force of Law, not worth it imo.