For beginners:

http://steamcommunity.com/sharedfiles/filedetails/?id=285546139 http://steamcommunity.com/sharedfiles/filedetails/?id=127468522 http://steamcommunity.com/sharedfiles/filedetails/?id=196704955

Campaign:

http://steamcommunity.com/sharedfiles/filedetails/?id=571937405 http://steamcommunity.com/sharedfiles/filedetails/?id=313293169 http://steamcommunity.com/sharedfiles/filedetails/?id=216908696

Characters:

http://steamcommunity.com/sharedfiles/filedetails/?id=396548661 http://steamcommunity.com/sharedfiles/filedetails/?id=273293575 http://steamcommunity.com/sharedfiles/filedetails/?id=197161711

Armor/Weapons:

http://steamcommunity.com/sharedfiles/filedetails/?id=201498488 http://steamcommunity.com/sharedfiles/filedetails/?id=356588219

Troubleshooting:

http://steamcommunity.com/sharedfiles/filedetails/?id=364802498