Steam
http://forums.steampowered.com/forums/showthread.php?t=2094647
http://forums.steampowered.com/forums/showthread.php?t=2132579
http://forums.steampowered.com/forums/showthread.php?t=2134905
http://forums.steampowered.com/forums/showthread.php?t=2135786 (binds)

Tripwire
http://forums.tripwireinteractive.com/showthread.php?t=10701
http://forums.tripwireinteractive.com/showthread.php?t=58226
http://forums.tripwireinteractive.com/showthread.php?t=59731
http://forums.tripwireinteractive.com/showthread.php?t=61396
http://forums.tripwireinteractive.com/showthread.php?t=64126
http://forums.tripwireinteractive.com/showthread.php?t=64408
http://forums.tripwireinteractive.com/showthread.php?t=65000
http://forums.tripwireinteractive.com/showthread.php?t=65457
http://forums.tripwireinteractive.com/showthread.php?t=66963 (binds)
http://forums.tripwireinteractive.com/showthread.php?t=71477 (binds)

Other
http://udn.epicgames.com/Three/SystemSettings.html
http://udn.epicgames.com/Three/ConsoleCommands.html
http://www.youtube.com/watch?v=6P1dTu9GAdU
http://raw-recruits.com/forum/red_orchestra_2_heroes_stalingrad/red_orchestra_2_tweak_guide_and_performance_solution_tips_2691.0.html 
http://segmentnext.com/2011/09/16/red-orchestra-2-heroes-of-stalingrad-crashes-errors-freezing-fix-fps-lag-performance-stats-graphics-and-fixes/
http://www.airattack.co.uk/portal/viewtopic.php?f=7&t=25383
http://www.desiquintans.com/articles.php?page=ro2binds (binds)
http://udn.epicgames.com/Three/KeyBinds.html (binds)
http://www.cybergamer.com.au/forums/thread/283779/Version-3-config/
http://www.cybergamer.com.au/forums/thread/276555/Fog-Foliage-gone/
http://www.cybergamer.com.au/forums/thread/277096/Performance-tweaks/
http://www.tweakguides.com/UT3_1.html
http://www.techspot.com/tweaks/ut/print.shtml
http://www.raidersmerciless.com/showthread.php?p=94088

RO 2 depth of field
http://forums.tripwireinteractive.com/showthread.php?t=30429
http://forums.tripwireinteractive.com/showthread.php?t=62785
http://forums.tripwireinteractive.com/showthread.php?t=65918
http://forums.tripwireinteractive.com/showthread.php?t=67437
http://forums.tripwireinteractive.com/showthread.php?t=68086
http://forums.tripwireinteractive.com/showthread.php?t=69744
http://forums.tripwireinteractive.com/showthread.php?t=76275
RO 1
http://www.29th.org/dh/index.php?title=Unofficial_Tweak_Guide (tweaks)


IMSIDCFE04DB5B8DE0C082E85C691FF99064F1E8284F4