If you use the jetpack on the 3rd mission and fly to the left cliffside there is a hidden foreruner symbol on the top side of the flat cliffs towards the corner.
sorry bout the i meant the 1st mission called the gate
Thank you.
I can’t find it 
The jetpack stops flying like I’m hitting an invisible ceiling.
Am I doing something wrong?
i found it, Caboose is heard on the channel. I could not stop cracking up.
> i found it, Caboose is heard on the channel. I could not stop cracking up.
I’m pretty sure you’re talking about a different easter egg.
ya to the left side by the tower there is some flat rocks on the cliff and the symbol looks like an upsidown 4