the most used gun and OP combo in pvp is shotguns/cloak not infectors (xbox 360) alot of people are using cloak, 2 shotguns with speed boost on reload, aswell as timeout, pumped up and the relevant cloak perks, oh and escape artist so they stay cloaked all match and run as fast as blur all match. Now how do you kill someone you cant see and who is running at 100mph the answer is an INFECTOR try using a sniper to kill these people lol

also people use this same setup with big boomers or ground pounders which do 1 shot kill you with no skill.
Infectors dont need to be changed people are just saying this to divert from the real issue in pvp which is the shotgun/shotgun cloak and blur combo which dominates the pvp and infectors are a good counter for this setup.
my solution to both these problems is make flashgrenades and electric nano disable homing effect on infectors

and let sniper users be able to see cloaked players when there aming down there sights and then you can mark the players like BF3, also the speed boost bonus needs fixing because it makes blur pointless.