“Verified: Host: Co-Op, Click "Host" Tab, Start The Mutliplayer Game. Guest: Co-Op, Click" Join LAN Game, Enter HOST_IP, Click OK.”

“Verified: Host: (Everything will be set to LAN by default) Create lobby, Start Game. Guest: press "~" under ESC key to bring up the console, type: "c_connect ("HOST_IP", 10999, "HOST_PASSWD")"”

“Verified: Host: Create Multiplayer Game, Edit Session, LAN 'ON' Only. Guest: STEAM + RT to change UI, will show "Direct Connect" in MP. Click DC and type IP of host, host can see guest joining. ”

“Verified: Host: Multiplayer, Host & Play, Disable: Steam Multiplayer. Guest: Multiplayer, Join via IP, Enter HOST_IP, Choose Default IP (7777)”

“Verified: Host: Enable Console in Keyboard & Mouse Settings, open Console, type "map", select any map, Enter. Guest: A Steam Group Server option will appear on the main menu!”

“Verified: Host & Guest: add "-nosteam" to launch option Host: Host, manage settings, E.S. details, public check & choose pass, start lobby Guest: Join, put host IP in, enter pass, account U&P, Join”

“Verified: Host: MP, Create MP, Start. Guest: Press CTRL+ALT+` for D.C menu to appear (use Steam's Edit Controls and make a button for this), enter: "connect HOST_IP:7777" in the D.C. bar then submit.”

“Verified: Host: Co-Op, Host, Switch to LAN, Create. Guest: Co-Op, Join, Input Host IP.”

“Verified: Host: Single Player, Change to Host Multiplayer, --, Start Game Guest: Single Player, Change to Join Multiplayer, Host Lobby will Show in Browser, Join.”