lol i think 20 is HILARIOUS!!! if they put that in i would just laugh because you know people would somehow abuse that

Dfree wrote 3 recon
4 jammer
11 chopper gun
25 nuke

no

they should put...
100 - God = God comes down and grants you invincibility forever.

they should have a 10 kills streak and everyone is temporally infected with herpes

Lets see they should add a killstreak at 6 or 7 where Cuban Missiles or Korean Missiles fire 5 times at a designated point in the map.

if u hit like a certain number of kills.. you should get like .. cold blooded automatically

xEzzi
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I reckon they should keep it simple and not one player domintate the whole game.
My ideas:
3:UAV
4:Counter UAV
5:Some sort of air/artillery strike
7:Dogs/Attack heli
8:Something similar to emergency
9:Armed attack heli
11:Maybe chopper gunner if not overpowerd

shared killstreaks. lets say u get a 10 kill streak you can split it between u and a friend so you both have predator missels. and they count towards your next killstreak like if you get 2 kills with a shared killstreak that means you have harriers..... and chopper piolet so you can piolet the chopper 4 ur friend. u have to be in the same game party as your friend that selects you to be the chopper piolet. and 15 pavelow gunner...... nuf said i resst my case

15: Tank comes and kills everyone

I'd like a killstreak where you get to use a tank!!!

That would be pretty cool