This is crazy, you sound like you are trying to turn infiltrators into a super solder or something. The breath delay is not that huge a deal. If they are only stopped for such a short amount of time that the breath delay makes you miss, then you have a very good chance of having them move out of the way while the bullet was in flight. Move in a little closer or move to a spot that you are flanking some cover they are using. You haven't used the cloak once in 20 hours or do you mean the prox censer? Either way both are useful for base assaults. Just because you haven't had a need for it doesn't mean they are bad. I use my Prox censer to keep an eye on generators I have overloaded to catch engineers trying to repair them. You do have a knife and pistol. They both work. I do wish that you could one shot people with a knife to the back. There are some close range rifles you can get. I am pretty sure each side gets one full auto rifle, one simi rifle, and one bolt rifle that can take 1x to 4x scopes. I personally use the bolt action for close in work because it is still a one shot kill on a head shot and at short range with a red dot it is ridiculously easy to get a head shot. Infiltrators don't have jetpacks for the same reason LA don't get scoped DMR like engineers and HA do. They don't want people to easily get up in perches with long range weapons. Get someone to drop a spawn beacon or galaxy drop onto a good spot. The exp rate on infiltrators is very fast as it is. When you have a nice zerg on zerg battle the exp just comes rolling in. No other class can pull in exp as fast, the only thing that can come close is a well run lib crew bombing the hell out of a zerg. When you don't have a massive zerg battle to feed you exp you can infiltrate a base and get good exp hacking and bringing down generators, kind of a crazy idea huh.