DICE has released the update 522175. To update just run your game or go to the installation folder and click on BFBC2Updater.exe to start updating your client.

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Version 522175 is going live within a couple of minutes. This has fixed the multiplayer map CTD's we experienced with 522174.

[NOTE: 522175 is merely a re-packaging of the datafiles from 522174. Therefore, version 522175 reports itself as 522175 in the auto-patcher, but does still say "522174" in the game's splash screen.]

Changelog for 522175

Single Player -
Fixed: Graphical issues on some systems on SP_03 (at start and when displaying background mountains at “Up river”)
Fixed: Character voice issue during cut scenes in SP_03b (only affected Spanish)
Fixed: Hang when killed using TOW Launchers in SP_05
Fixed: Graphical issue on some systems on SP_05 (displaying background mountains)
Fixed: Voice volume in cut scenes on SP_06
Fixed: Unexpected dialog at start of SP_08 (only affected Italian)
Fixed: Random crash in SP_09 cut scenes

Multi Player -
Fixed: Server Browser - Joining a password protected server results in a connection timeout
Fixed: Server Browser auto updating server list when reopened causing a timeout issue
Fixed: Password issue during Friend invites
Fixed: Password text field issue on joining a password protected server
Fixed: “Flickering” ship on Arica Harbor
Fixed: Clan tags that use numbers in them displaying a “0” on the Select Spawn Point screen
Fixed: Display issue on long server names
Fixed: Mortar Strike icon not updating (Beta issue)
Fixed: No “Exit Game” menu option appearing at the end of some rounds.
Fixed: Flickering user rank icon (appeared as an animated gif) when user reaches rank 10.
Fixed: Flickering trees and “Red Box” on Laguna Presa
Fixed: User is logged out when failing to create a new soldier
Fixed: Zeus stationary weapon not appearing in stats
Fixed: Zu23 not appearing in stats

Source: EA UK Forums