Is this added/already said? They should change the radio command/q to a different color so that on team play or on defense people on spamming q on a building will actually will not hinder a much more important note from tactical players. Its hard to type only to see your typed message vanish due to q spamming.
Also if possible add up on the top of players head that he is typing like an icon that states I am typing. I hate to kill people that is typing, cause it is easy.
also make it to have remote c4 different slots and proxies on different slots.
Also make it that proxies can be removed by issuing a vote or by pressing q and then placing a different mines on much more proper places, and it should inform the miner that he/she's mines where removed by x(Player who removed his mines and change remined it). This make it to less stressful to remine. For trollers by placing mines on different location add something like a vote to invoke him/her from mining (team only).
Make a customization panel, to add in dept game play.(Just a thought)
-Like Armor(Remote Vest works well currently ) that reduce damage and it cost like 600+ or something.
-Add armor panels for Vehicles to increase armor or increase fire rates cost like 800+.
-You should add a sentry turret not the aa turret as AA turret will be OP as Air units will just be so useless, A sentry turret that can deal moderate damage and have a bad aim will do the trick you know just a hindrance on sneaking people, but not a serious threat. And the sentry will say Enemy spotted on the user who placed them. And the user can only place 1 or 2, and it should cost like 1000 or 750.
Also the score system make it fair for the attackers, I hate to see people losing even though they were the ones attacking. Or players having higher scores even though they were only repairing buildings. Attackers make things happens they should be rewarded by having good scores, and Defenders deny things from happening and they should make it that killing people will increase scores than just repairing a building and your scores increased like 500+ or so.