I think the Phantom module for C3 multiplayer needs a work around. Finar tier should increase stealth time by 20% instead of that useless active perk.
The problem is that decent players dont shoot from stealth as they go into armor mode just before shooting, thus making the recharge delay after shooting completely un usefull.
I hope it gets changed, its seems to me an underwhelming perk compared to 15% increase fire rate which potentially decreases the time it takes to take down a player by 15%. up 25% if having tier 3.
On top of that, the tier 2 "improvement" that removes sound from entering stealth mode is not an improvement in the least. In most game modes there is constant noise, fire and explosions occurring which ultimately interferes with anyone hearing anyone entering stealth, I think this should be changed as well, to (for instance) slightly improved stealth, by 10% maybe to keep it as an improvement but no to overpower the module at the same time.

A video to reinforce the claim:

http://www.youtube.com/watch?v=w6ujIGYXdCo