Online play has a few issues still since this was initially designed as a console game. You can tell it was rushed to PC since CoD:MW2 and L4D2 are on the horizon. I expect they'll patch it soon but we'll see.
The main issues that ruined the current co-op play were:
- Who ever creates the game defines the questing, similar to Diablo II.
- The in-game VoIP is automatic and with vent there is no options to bind/disable in game (FYI I'm loud).
- You need to open several ports or have your firewall disabled to host games (Only Beepz could create games we could join last night and he was only level 4) this was so frustrating Beepz did 5s, I decided to go back to single player, and Asmo and Kval played on their LAN.
Here is a link that solves most of these issues but requires you to modify the config.ini file or open ports.(
PC Tweaks,
Port Forwarding)
This guys sig sums it up well:
"Borderlands: An amazing game that I'd love to play with friends. Except can't, because the online interface is *(&#$! Gearbox, you have one week until I return my copy"