You can also download mods and place them in your .pak folder and run modded maps. I suggest this new GEM :
https://mordhau.mod.io/samurai-go

Mods that are linked to other mods (like mine) typically dont work right in local though.

If you wanna play the game, even if its just horde mode or whatever while the servers are down:
https://www.reddit.com/r/Mordhau/comments/p3zuqh/how_to_play_mordhau_while_servers_are_down/