While nothing can really be done to remove headglitching as is plagues almost every FPS nowadays, it could be used as a tool to peek over a hill and find the sniper without running out blindly and getting sniped by someone you can't see. As for the jumping around corners, if I remember correctly when you used 3rd person in a war that was almost the tactic for CQC. Although with a 3rd person view, you can actually see what you're shooting at as opposed to clipping through the playermodel and guessing where to shoot.
While true, the main purpose I'm trying to get with this suggestion is that in my, and some other community member's opinions, war in its current state is not fun; and many of them agreed that 3rd person combat was some of the most fun combat they've had on the server.
While I agree with this post a lot, the suggestion wasn't really tailored towards events, as they currently are the only reason I play anymore. The suggestion was for war as stated above, many people just don't find it enjoyable anymore.