Yes there is wallhacks but there not done with spinning that just for a 360 degree shot. The way you do a wall hack is when you jump up and down in a certain part of the map and your guy we'll eventually jump through the wall but they fixed most of those so it doesn't happen frequently. Your problem with air support hmm? What launcher do you use? If it's the smaw it will miss on ocasion. if it's one of the lock on only launchers then it's probably a hacker using the fire at me only to miss hack from CoD4:MW. Hope this helps and merry Christmas.
I saw a blatant aimbot today.
I was playing on Boardwalk. Came up through a building and was moving towards the boardwalk, but still inside. Bam I am dead.
So I watch the kill replay. The shooter was sniping from the other end of the boardwalk. There was no one else in view, he wasn't shooting at someone else. Suddenly he locks on the side of the wall and head shots me. I was inside, invisible to the shooter.
Frankly, I am 'ing tired of circulating lobbies trying to find one that has minimal blatant cheats. Blatant? - Yes, watch the replay cams. These 'ers dont care because no one is banning them.
They were probably using sitrep. With my astro headset I can hear people reloading across the map, and with mw3 having directional hearing it's not hard to pin point where someone is. I mostly play on xbox and I've never seen a hacker. Once you know the layout of a map it's easy to figure out where the enemies are coming from, the spawns are so easy to predict.