When using the operator seat in multiplayer multi-crew I have not been able to use the 9K113 gunsight due to some multiplayer things not syncing similar to the flare dispensing where one player see's it and the other doesn't. I would love to enjoy the ATGM's but it has only worked once with multiplayer multi-crew. The gunsight will only occasionally open and than close almost instantly as you enter the display even with all the proper switches in the correct positions and the observe switch on with should open the sight covers.