I noticed you said something about spawn zones in an earlier post, in SP, you spawn on opposite fields from each other, same with battle in MP, the only game modes with this issue really, are DM and TDM.
Also I completely agree that glances seem to be too random, also I have always used my sound to tell where cav is coming from, but then again I mostly play the cav and not the the inf. It would be better imo to make the tilda key just look behind you and not move in a 360, the animation is nitpicking though imo.