Theyre not "overpowered"... They do exactly what theyre meant to do. Nothing more, nothing less. The only thing that you could argue is how long they last. But even then, ITS NOT A BIG DEAL. Besides, if the other team is getting to 18 kills before your team, what does that tell you? Theyre probably the better team that match.

     Plus, you shouldnt rely on, or get too excited about your killsteaks because im gonna shoot them down anyways.

The only thing I really don't like is the flash. Why does it have to flash your teammates? Also, if your team uses it and one of your teammates is near someone who has assassin pro they will most likely get killed from something that is supposed to support their team. I guess the best thing to do is just warn your teammates before setting it off.

The only thing I hate is when in team games the enemy keeps chaining EMPs. I think there should be a 1 minute cooldown after one EMP is finished for the team that calls it to prevent chaining EMPs.

EMPS should last less time and have a small cool down.

Last 45 seconds with a 15 second cooldown.

and make it a 20 point streak.

Fair, balanced and still very useful.

Nothing sucks more then having 5 strait minutes of EMPS and stealth bombers...

The only change I would make to EMP would be to make so that also affects friendly electronics as well. It's an EMP. It should affect everything. Maybe then people wouldn't spam it as much. They would have to give careful consideration as to when to call it in  so they don't screw over their teammates.