So, I've done the Warehouse a few times, and thought, hey, I wonder if I can get a different result by getting the jump on Madran?
I stationed my crew near the Romulan shuttle he uses to escape, and got the jump on him from the other side. He died, just before my BOFFs and I got wiped out.
Well, here's the relevant excerpts of the combat log:
[6:55] [Combat (Self)] Your High Density Proton Beam deals 88 Proton to Madran.
[6:55] [Combat (Self)] Your Bolt Setting deals 107 (81) Antiproton Damage to Madran.
[6:55] [Combat (Self)] Your Sniper Shot deals 280 (212) Antiproton Damage to Madran.
[6:55] [Combat (Self)] Your Bolt Setting deals 72 Antiproton Damage to Madran.
Yep, he went down in four shots. Sadly, this did not change the outcome of the mission - the shuttle got away, and nothing different happened as a result of Madran dying. I was almost hoping for an accolade. :p