James Bond in FIRE AND ICE

You grab hold of the guard's gun arm and you wrestle around for a good hold on it. Despite the guard's resistance you manage to get a finger on the trigger and squeeze it.

The blind fire shoots past Matlock as he dives for cover, but the shots rip through the two pilots and the windshield. The dead men's bodies smash through from the vacuum creating a giant vacuum of air in the cockpit and bridge. You release the guard and grab hold of a small pipe on the ceiling.

You noticed that Matlock was no longer in the bridge and with the turbulence all around the plane he must have made his way to the storage compartments.

You slowly force yourself along the bridge, using whatever is possible for support against the suction of the air.
You get to the stairs and slide down them swiftly.

Still no sign of Matlock. You realize now that you have no weapon, and are on the hunt for a madman, whom is indeed armed with a Glock.

You see the stairs leading down to storage and straight ahead in the foyer you hear a noise.

What will you do now?