It's just a giant holodeck, any boarding parties would have to fight alien, preditor and a bunch of terminators. "computer, please turn off safety protocols?"
"Are you sure"
"Confirm command code luddimus alpha alpha abso foxtrot lutely"
Or maybe it's like that other ridiculously oversized ship...the voth fortress. Filled with empty corridors big enough to fly a ship through and a giant spinning dilithium crystal that randomly shoots space magic in all directions.
Comments
Speaking of, when DO we get a T6 Kal Dano shuttle?
"Are you sure"
"Confirm command code luddimus alpha alpha abso foxtrot lutely"
Life size.
We come in peace, SHOOT TO KILL!