To be honest Im not even a fan of these animes but I get a raging gaming pecker everytime I see an FPS engine gets turned to an action game, probably because I expect them the least
Infiltration for the original Unreal Tournament. Because most of their links are broken (and one of them requires membership), heres their Fileplanet download link
Multiplayer seems dead but thankfully it seems to have a funtional bot with it.
Another one I thought about adding. The problem with old multiplayer mods is finding people to play them with as bots often don't work well with most. That's why generally I add singleplayer mods.
Keep the suggestions coming though.