UbiSoft has released the 1.6 patch, most likely the last patch for the game. The change list isn't very long and doesn't seem to address the problems that the players have been voicing for the past several months.
Release Notes - Raven Shield Patch 1.60
* Enhanced support for Iron Wrath and future mission packs.
* Vote Next Map
It is now possible for a player to propose a change of map by using the new
command line VoteNextMap command. Players vote using F3.
If more than half of the players vote YES, the servers will automatically
change map.
* New Reticules
Reticules without a First person weapon are similar to those used in Rogue
Spear. Reason is that it should've been always like this.
* Improvements to the Automated Patching System
New skin makes it easier to locate information.
Better routing and selection of download server.
* ESRB Notice
New notice added before connecting to a multiplayer game. This was done to
conform to the ESRB rules.
The message is only displayed in North America.
* Restriction Kit
Fixed a problem preventing individual selection of restriction kits in some
circumstances.
* Fixed Crash
Fixed a crash that occured occasionally at the end of a coop multiplayer game,
after a mission was completed.
Download the patches for Raven Shield and Athena Sword from the
Official Website
