always when I try to load up gm_flatgrass it says "disconnected your map[maps/gm_flatgrass_water_v5.bsp]differs from the servers" and I cant play could somebody help me fix my issue thank you.
Go into hl2mp -> download -> maps then look through every map you've ever downloaded :p.
If by chance you got the map many months ago before steampipe stuff and it's not there, then it'll be in hl2mp -> maps, but I wouldn't expect to see it there honestly