Sorry for dragging this part on for so long, but pretty soon things are going to start picking up. This is near the end of the "stuck in another stupid train car section."
Pretty much all the combine in this comic are all NPCs. I only started posing them for the final panel, in which half of them can't be seen, so wasted effort there.
It's funny how you never notice the real flaws in a comic until you start putting it together. First, there's frame 4. I should have made that headcrab in mid-air already pouncing. That would lead into frame 5 better (that's why the headcrab's stuck to the door. It closed on him in mid-leap.) also I should have done more to make it look like the door is actually closing. The lame little motion blur effect I added in doesn't seem to help much. Then there's the last one. The posing looks like shit, but there was some stupid invisible barrier between the class and 2 feet in back of it. That was as close as I could get Frohman although I wanted to make him leaning up against it and peering out at the headcrab instead of standing there all bad looking like. Then there's the lame punch line at the end, but I can't really help that now can I?
Fixed Frame 4. Fortunately I had to reload the map to get the glass back for frame 5 & 6 and I had saved the game after I was done. All the models were in the same position as the original, all I did was delete the NPC headcrab and spawn a ragdoll to pose in mid-air.