No, but got sent my first one today. Someone on my team in control called me a "little b**ch" for not waiting for him on one instance of heavy ammo, (although I'd already waited at least 5 seconds to check for incoming teammates (none) and had to take it as two enemy blips showed on the radar (taking to ensure enemy don't get it). I understand it can be frustrating if you want it but I don't understand the point of hate mail..