So with our 45 days of free gametime I am playing PS again, was always one of my favorite games since playing at release. What is the deal with the Infiltration suit now? I get spotted by anyone and everyone out there. Even had a Lib from way up pull a U turn fly down and shoot me... and that was with Sensor Shield running. Am i missing something here?

I've had no probs (well no more than the usual) wth infiltration suits. Actually kind of fun again now that there are a large number of players once more.

Well, I know there are cheats out there of course (and I think those cheaters should be hung by their intestines). 

However, I know at least once a game session I encounter a bug where I see a cloaked infiltrator without using darklight by seeing his name above his character.  I'm sure this is another known bug that they will never fix at this point, and I don't really know how this occurs.  I think it's when my center crosshairs happen fall exactly on the cloakers position, but I'm not sure.  I just shoot at the floating red name :)

A floating name above a cloaker isn't a bug, it's usually when a nearby friendly detects the cloaker or unviels their position. There are a few hacks and simple graphics settings with some cards which make inf visible without dl at any range thereby redering them pointless.

It's one of the more challenging aspects of the game (made worse by the cheats) and in my experience they are like a trick play char, by that I mean there are a number of tricks (depending on certs) which will rake in the kills for infs oh and practice the timed frag nade insta knife for easy kills.