Insomniac Games has listed details on the upcoming Resistance 2 patch 1.40, which will be available January 26. The biggest fix comes to multiplayer progression. Bryan "Sporto" Intihar, an Insomniac community manager, said, "Some people have seen their competitive and/or cooperative characters reset to level 1. For several of those cases, this patch will not only bring back all the XP, stats, and attributes that you’ve lost, but it will also add to your character profile the XP/stats/attributes that you’ve earned since those levels were reset. For example, say you were a level 20 medic and after being reset to level 1, and you earned 5,000 XP. Thanks to the patch, you’ll return a level 20 medic and that 5,000 XP will be added to your profile."

Sporto listed numerous other fixes the patch addresses, including:

Trophy/Medal/Ribbons
“Salute Me” trophy is not awarded until player reaches level 31 (Lieutenant)
“Berserker” trophy can be collected during non-ranked games
“Survivor” medal can be collected in cooperative games
“Sure Shot” ribbon is awarded if player has accuracy of exactly 50%

Clans
Added clan support for viewing members, sending invites, and setting up clan tags
Default clan region is now USA

Match Balancing
Unbalanced ranked games are cancelled in staging before the game is started
Parties are prevented from matchmaking into free-for-all Deathmatch games

Competitive
Loadouts can be disabled in the “Create Game” screen in competitive games
Balanced the chance of dropping large ammo pickups in competitive games
Core Control scoreboard displays “Kills”
Improved scoreboard formatting

Cooperative
Balanced the amount of XP gained by the Medic class in cooperative games
Stalker movement enabled in cooperative games
Small ammo pickups don’t give LAARK ammo in cooperative games

Weapons/Gameplay
Splash damage on Pulse Cannon can damage the player firing it
Rossmore reticule better reflects its accuracy
Fire is easier to shake off
Players cannot swap weapons in the middle of a melee attack

Miscellaneous
Localized text updates
Network message optimizations
EULA displays the correct language text for Norwegian, Finnish, Swedish and Danish

Source