This update is addressing some gameplay bugs that have been reported since the latest big client+server update. Also, there are some minor improvements to the RCON interface.

The master servers will remain available; Battlelog will remain available.

Changelist
* Fixed AA missiles not doing damage to vehicles moving at very high speeds (This is the much wanted heatseaker fix)
* Fixed TV Missile doing much more damage than it should (it is no longer a 1-hit kill)
* Tweaked tank armor strength
* MAV elevatoring fix, round 2; proning on the MAV will now disable it
* RCON admin.say command can send to individual players
* A few invalid map+gamemode combinations in maplist.txt could crash the server on startup; these combinations are now rejected instead
* RCON vars.serverDescription was not returning anything in R20 if the string was not set; this has been changed to return “” instead
* RCON player.onChat now reports the target player subset

The server administrator manual can be found here: http://static.cdn.ea.com/dice/u/f/bfbc2/tmp/BF3_PC_Server_R21_933688_Docs_ServerAdministrator.zip [static.cdn.ea.com]