Well you'd think that sooner or later we're going to have to have a climatic run in with some of the Wastes wild life, and perhaps some squatters. It's not hard to imagine that like the few people on the expedition who've lived on the surface, that there's small rural villages, or nomadic tribes of people doing the same. I suggest having a run in with them inside the weather station, with a really climatic sprint back to the carrier while being pursued by some beasties.
It'll give everyone a chance to shine with the soldier's combat skills, the doctor getting to treat those that get injured, and perhaps land himself a specimen, or some valuable genetic material from either a living, or dead beast, Gregor getting the chance to explain the finer things about the Waste to them as they set out, and then round it all off with Wakefield getting to do an evaluation on it. Everyone's character wins, and gets to excel while they all almost get killed in the process. : D