Halo 5 campaign playable at E3

Games Halo 5: Guardians
1

So this guy just tweeted this.
Not official and he won’t give us the source.

Can anyone confirm this?

2

Unfortunately I can’t confirm it but from previous E3’s, when they showed off a demo of Halo 4 it was tweaked in the final game, if anything they’ll show off a demo very similar, showing off a demo of the campaign but having it tweaked in the final game, it was a bummer how the demo they showed off for Halo 2 was cut completely from the game though

3

I don’t think he has any proof, but there could always been the first ‘mission’ available during the E3. There are always new things at E3, I wouldn’t put it past them.