There is A LOT missing for it to be exactly like the singleplayer games. Don't underestimate this task. The whole environment is made for multiplayer, singleplayer is just a tacked on WIP thing. Last time I've checked, turn based combat was still buggy as hell, also simple things such as menu sfx was missing.
Honestly, if I'd want to make another Fo1/2 singleplayer game, I'd rather pick Fo2 with Sfall. It doesn't come with fancy light colors and you have to deal with some other workarounds, but that's rarely a big issue.