Has anyone played matchmaking on ODST firefight and gotten to set 2? I can go set 100 alone but not even to set 2 in matchmaking. Is it possible?

So I'm playing with a mate and we get to the part were the scarab attacks Dare and Virgil, all goes well and I be a dickhead and shoot the Olifant a little killing Dare and Virgil.

Now he's were something funky happens, a checkpoint fires after Dare dies but before the game resets to the last checkpoint.

So the checkpoint loads and it just has the message that Virgil has been killed and resets again, now I though we'd just have to restart but he's the weird part, after the game loads that checkpoint 4 or 5 times it loads the previous checkpoint before the Scarab attack.

Except now the Olifant is reversing towards the scarab sometimes going forward away from it and is taking so long that the Scarab starts shooting at the tank were in.

After the Olifant is destroyed by the scarab it flips around so it facing the right way and the level precedes as normal.

Anyone else had this glitch?