Where the heck are they, did they like die during the magical explosion thing? They aren't in any alliance, are they going it solo? Please help, very confused.

Imperials exists, they just aren't playable since the Empire is up for grabs and many of them are allied with Mannimarco and Molag Bal.

I thought Mannimarco and Molag Bal are the anti-antagonists, why do some imperials side with them?

anti-antagonists? Lol what.

Lol sorry antagonist

The Imperials are trying to keep control of Cyrodiil and White-Gold. They're being headed by Abner Tharn, who has a secret alliance with Mannimarco, who himself has an alliance with Molag Bal. The three alliances are trying to take over the Imperial City and start their own Empire, which puts them in opposition.

Thank you for clearing it up for me

You can't do that, Snake! You'll create a time-paradox!

They aren't in because for a gameplay perspective their siding with an alliance would be jammed in an unsuitable manner. It's but no means impossible though.

I hope to see them added as playable in an expansion as a race that can join any of the 3 alliances.

Not going to happen, the Imperials are in hiding thus why the three alliances is fighting for control.

Putting a 4th playable race into one of the three alliances will unbalance the other two alliances. So that's not going to happen.

What? They are not in hiding, we will be fighting them as NPCs in Cyrodiil. And I wasn't saying we should put them into one of the 3 alliances. I was saying that they could be the one race that could join any of the three alliances. In the same way that Pandas in WoW can be either Horde or Alliance.