Halo: Campaign Evolved doesn't have split-screen on PC, but this mod fixes that, if you're willing to look past some quirks
Halo: Campaign Evolved is officially available now across PC and consoles. All versions are nearly identical in their feature sets. Nearly. That’s because the PC version does not support split-screen co-op, leaving traditional online co-op as the only way to play with a buddy.
Read the full article on Eurogamer
Opens in a new tab · www.eurogamer.net