Recon UAV not working

During the weekend I was unable to use the UAV as Recon. I was able to unlock it several times while getting squad points doing objectives but I'm unable to use it because it is no longer bound by a key (used to be number 6 key). It no longer tells you the key bind and when I try to set a key bind it is not listed under infantry/vehicle key binds. Was the UAV disabled on purpose?

Thanks,