Offline Forge/other

For those who have Halo 5, yet don’t have Xbox Live gold they can only do one thing, single player campaign, we don’t even have split screen, for the ones who have gold but there Internet is down, they should be able to play the following, Single player campaign, Forge, Custom game (alone). And maybe add, Spartan Ops, again. Tell me if this is a good idea, or maybe your opinion and ideas, see YA later mates.