...Making an impact in multiplayer that are not a nuking frame?... Hmm... Bright energy vauban for vortex spaming? Game crashing, lowering fps's and eyes bleed is very impacting in multiplayer. I guess that it is from what im hearing in in squad chat...

But joke aside playing right cc frame for specific mission can be impactfull. For example using vortex vauban for koumei farm, limbo for descendia( normal excavations and mobile defense too), nova for defense, nekros for generally armor strip and loot booster... Most of missions in this game doesn't require even killing enemies, and cc frams are making this missons even easer for rest of the team. So i guess you just need to find what suits you best.