Comrades In Arms

[reject]

Hello, been a lurker for a while but registered for this, my first post.

I've been playing on the PS3 for a while and getting closer to finishing off all the trophies. I have 4 left to get - 3 are pretty straightforward, with enough time they will come but the 4th (clue is in the title of the thread ) is proving to be a real pain.

I think I understand the requirements for it. Here is what I have been doing:

1. Create a game
2. Invite two friends to it
3. Friends join lobby, we join the same team
4. Fly, blood, death, destruction, victory
5. "MISSION COMPLETE"
6. No trophy.

This has happened four times now. Am I missing something? Or am I doomed to never unlock this trophy? Hate to think I got so far to get glitched up by this.