In Mass Effect 3 I chose Infiltrator for the ability to snipe and Cloak, but so far I've found that I run out of Sinper Rifle ammo fairly quickly and Cloak doesn't seem to help that much aside from the damage boost.
How can I play this class effectively and what skills should I focus on? The melee damage boost skill seems useless (except for the increased health) since even with cloak running in and bashing on enemies doesn't seem conducive to living, nor does it pair well with sniping.
Best Answer
What you're dealing with is basically just the fact that it's a slower payoff than a melee specialization.
Sticking with the cloaking and sniping tactics will payoff. You'll have to invest a lot into building your rifle up, but eventually most enemies will be one-shot kills unless they have multiple layers of shields.
Of course there is a lot more in the way of hybrid options in ME3 than there was in ME2 so some of it will be up to you and how you play the character.
Cloak + Shotgun = AMAZING!
Right now my load out is: Mantis V Wraith V Shuriken V
Cloak and Operational Mastery are at 6 and Fitness and Disruptor Ammo are at 5. Everything else is at 1 until I max the others out.