Fix mortars, add BF3&4 vehicles and call-in's/commander mode

The mortars are almost completely useless. The fix is simple, add more splash damage for a larger radius, show the splash damage on the minimal so we can adjust our shots, and allow 3-4 shot volleys before overheating. That simple. Just like BF4. 

Please reintroduce the MLRS rocket truck, the bomber station, and commander mode complete with AC-130. The bomber was one of my favorite pastimes in BF4. It's a mist have. Same with the ac-130. And if you DO reintroduce the MLRS, show the splash damage radius on the mini map and allow the same number of rockets per volley before overheating. And bring back the cruise missile strike in the commander's arsenal. 

Also, fix the weird problem with binding custom button layouts. The game won't allow me use certain buttons. I simply wanted to switch my grenade and commsrose buttons and now, it says my commsrose is bound but it won't appear when I press the respective button. 

Please don't think we are ungrateful because you listened to almost every request and solved most problems since that nightmare that was BF2042. But the BF3&4 games were the best and that is what we want MORE of! For an honorable mention may I suggest naval warfare with the new stealth destroyers as a main choice for vehicles with smaller vessels in the mix like swics. Give the destroyers a 40mm bushmaster on the deck with a choice of aa and ATGMs, a cruise missile(on a long cool down timer), and a few as or min guns.