ANY AMMO GLITCH
*Would be Grateful to anyone willing to record this for me, If so just post a response and I'll +Rep you for the helping hand *
I came across this glitch completely by accident, and as far as I know I am the only person to have found THIS method of firing any gun ammo from a chopper gunner.
I am well aware that this has been possible in the past, this is just a new method as most have been patched, and this is a lot easier too.
I take full credit for THIS method of the glitch.
Get into a Demolition/CTF/S'n'D Match
Get your desired Kill streak, AKA The chopper gunner.
Wait until the end of the round, don't worry you don't have to wait in a corner, just make sure you don't use that chopper gunner!
Once the next round has started, at the beginning of the round open up your chopper gunner kill streak.
NOTE: You have to do this fast, as the ability to swap weapons at the beginning of the round is only for so long.
Whilst the chopper is flying in, press start and change classes to any other class, aka your desired gun.
Remember, you must do this quickly, you must do this in the time when you can change guns at the beginning of a round.
Once done this, the chopper gunner cross hairs should disappear and your own gun map should appear in the right hand corner.
From then on, you can fire your gun from the chopper, change guns to your secondary and rain death from above with RPG's or whatever gun.
Info: This is quite a pointless glitch, but it's fun all the same, you can even fire your shotgun hahaa, I'm not sure what guns work, but in theory all should, and so should all secondarys.