While a ceph gunship is active and firing at an opponent, reloading whatever weapon you are using becomes instant. i.e. a gunship I have called is firing at someone, and I go to reload my MK.60....it plays the reload animation for a fraction of a second and then boom. Full magazine baby.
Also, if you are following an opponent and that opponent starts a ledgegrab, and you start a ledge grab on the SAME SPOT before he finishes, it will instagib him. points are awarded and the icon displays as a car/thrown/kicked object kill.
I'm not sure if this is also a glitch or not but sometimes when you collide with a teammate it will knock you out of cloak and drain your energy.