yes it can
u can't, its s**t
Up to two players can play in the Co-Op Campaign mode on Halo: Combat Evolved.
AnswerNo you cannot. This is only in the Xbox version of the game. OLD ANSWER: Yes if you can do it on the XboX Version, You can do it on VistaYes u can u coc* sukah
As far as I know there isn't a co-op mod for the PC
yes u go to play multiplayer and then u go to co op then u press a then u play the lvl u want to
You cannot play Co-op on Halo Combat Evolved or even Halo Custom Edition for the PC. A couple of years ago, there was a mod created that had co-op working however had many glitches and was not worked on enough. If someone knew what they were doing, it could be developed today however as of date, this doesn't exist, unfortunately.
co op mission mode
halo
Yes, Halo 3: ODST will feature offline cooperative Firefight mode.
Portal does not have online like Black Ops and Halo, etc. Portal 2 does have a Co-op though so you can play with friends.
Yes. How- Beat game on legendary.
This all depends on the game that you have... if it is a game such as blackops you can not play co-op mode unless you go online, you cant do so in campaign mode. if you have world at war on the other hand you are able to play in co-op mode.