Please add some kind of matchmaking with lobby and chat with some kind of system so we can vote for a map. also add a ARENA mode and WARZONE mode just for PC players, or some kind of mode for cross platforming. or let us make our own WARZONE maps and modes. Bring the FLOOD back for WARZONE too. Please don’t add a massive aim assist for controllers like they did with call of duty black ops 3 on Steam. Please put this game on steam.
There will be a custom game browser coming to both Halo 5 for Xbox One and PC, but there is no eta on that dropping as yet. Warzone isn’t for forgeable due to its construction and won’t be coming to forge for Halo 5 (going by comments from the forge team).
Forge for PC is really meant just as that - a solution for forgers to build maps in a PC environment and test them out, then share them on Xbox for others to use. Right now there are no plans, at least none we know of, to bring the full Halo 5 experience over to PC.