Visible crew/equipment: When they capture the brain bug, just before Carl says "It was a man called Zim [who captured the bug]", you can see a microphone antenna shadow is visible on his back. The shadow of the camera on his shoulder can also be seen in the fullscreen DVD edition. (01:57:35)
Visible crew/equipment: In the scene towards the end, in the cavern containing the brain bug, there's a pyrotechnic set-piece of a massive quantity of ammo being used up. This was filmed from a number of angles, and in one shot, looking down across the cavern there is a camera man and an assistant visible in the mouth of one of the tunnels leading in. I don't know if this is corrected in the DVD release, but it was certainly there in the UK theatrical version.
Visible crew/equipment: When Rico gets thrown from the tanker bug and lands on his back on the ground, a piece of the flap covering the mattress pops up.
Visible crew/equipment: When Rasczak tells everybody to fall back into the compound and "hold what they've got", there is a shot of one of the bugs being killed and landing on some silver containers, knocking them over. The wires used to pull the containers over are visible. (01:32:35)
Answer: When Rico, Diz and Ace report to the Roughnecks, they find out that Lt. Rasczak saved him. He was listed as dead, because Carmen checked just hours after the battle. With the MI's huge personnel losses, all the dead and wounded hadn't been confirmed yet. He was listed as dead because he didn't return with his unit.
Grumpy Scot