The gunner will no longer track targets once the missile is fired. instead he will stop tracking the enemy veh once he has let the missile leave the tube. he will track the target with his optics before this. because he will not follow the target the missile will only fly straight.
T-90 gunner will track but the AT-11 missile will simply fly high into the air and then slam back into the ground in front of the t-90.
issues seemed to come about/start when the top down attack was removed, might be related.
Tested with the CUP BETA