I’ve gotten a lot of questions about Half-Life 2 Campaign, many of them being very similar to one another so I figured it was time for an FAQ. I’ll update this post as more FAQ questions present themselves.

Can you add [some stupid feature from Sandbox]?
No. This isn’t sandbox, it’s HL2.

Do the citadel levels work in HL2?
For the most part, yes.

Does this work with Episode 1 and 2?
Sort of (see question below).

The episodic games are horribly broken! Why?
Most, if not all, of the problems with Episode 1 and 2 Garry has to fix.

Will you be adding a Lua version of the super gravity gun?
No.

Will you add a spectator mode to players that have completed the level?
No.