Quote from ReadMe:
Brave players can go prone on Airstrike markers, block the visual cue, and cause them to be aborted if done early enough.
Lol. Have to test this out 
BTW: Is this a new feature for the final ET ? ā¦didnāt see this in the test and in gameplay changesā¦
its always been like that, even since RtCW. i should warn that its not as easy as it sounds though
U couldnt prone in RTCW, what youd id was crouch on the canister and if u werer lucky u would stop the a/s
More about timingā¦
You had to get directly on top of the thing and crouch pretty damn fast, before the LT. who threw it got th āAffirmative, on my wayā message. Then you had to know when to get off. Get off too early, and the airstrike would still come, get off too late, and you would be killed by the exploding cansister Usually, i would just run the hell away from the pluming smoke, unless there was some tactical reason to risk myself in order to stop the strike 
B_D