"Approaching position zero -- we're almost there." "Extend the landing gear." A thrumming low frequency metallic hum filled the ship as the massive gear slowly extended, reaching towards the planet's surface like a child grasping for a cookie.
Commander Sylex observed his readout display's wireframe representation of the planet's surface. "Slow it up Lynn, we're just about on top of it! 4 - 3 - 2 - 1 - ...." An audible crunch was mixed with a lurch as the ship's landing gear made heavy yet delicate contact with the surface of the planet.
"Okay, let's wrap it up!" Dean Frenny turned to look over at Sylex, "not bad Steve -- I imagine that it'll only take us 20 minutes to finalize the drop this time." "Yep," Sylex replied, "that's the way I like it -- nice and simple."

One hour later:

Don Herricksen scrutinized whatever he could of the panoramic view of the planet from the viewing area. He walked from window to window, within the giant lowered cylinder of towering glass panes, eventually stopping to sit.
He couldn't help but think of how new this planet was to all of them, and wondered about what forms of life existed here. Then -- out of the corner of his eye -- he caught a glimpse of something moving swiftly through the air. Herricksen whipped around to see what it was before it disappeared past the glass. Soon he could only hope that the flying 6 foot monstrosity had flown right past the windows and back into the haunting mist.
Instead, it slammed into the window -- paused for a second, and then hurled its head against the glass that was supposed to be impervious to just about anything. To his amazement, the center of the pane cracked and shattered in one quick succession. Herricksen was caught between the indecision of amazement, curiosity, and the need to run like hell.
Faster than he had ever imagined, the creature squeezed through the tiny opening like some type of sickly squid, rapidly clamoring towards him. Herricksen started to bolt, only to suddenly feel slightly lighter than before. He looked back at the creature and then down to where the rest of his body should have been. It was right on top of him -- all over him. Blood was everywhere -- his left leg and a third of his abdomen were nowhere in sight.

In response to the sudden hull breach, two crew members speeded along a circuitry-encrusted hallway -- down another shaft and through a short access-way. Their thin environment suits reflected the pulsating warning lights, as they closed distance to the door which sealed off the observation cylinder.
They popped the door latches and pried it open, only to find the last thing they had ever expected to see. A bird's-eye view of some horrible jaundiced alien thing chewing on the gory remains of one of their crew-mates -- exactly who -- they were unsure.
The first of the two quickly pulled his sidearm and levelled it at the creature. He pulled the trigger just a fraction of a second after the creature noticed his presence. Right about when the bolt impacted, the second officer levelled and fired a round at the thing. The first bolt ripped a chunk off of the side of the creature, while the second shot exploded within what appeared to be the thing's head, dropping it to the ground in a quivering mass of jelly and armoured scales.
"Son of a bitch... let's call in the quarantine crew." The second slumped against the nearest convenient piece of hull -- muttering to himself, while the first re-sealed the hatchway, in the event of another alien breach.