About logic, I see you all have NOTHING to debunk the Ferro & Spunkmeyer version.
They had nothing to do while other Marines were risking their lives and the Company knew about this. So they paid them to get them some fresh eggs from the Derelict. The Company instructed them to take basic safety measures, which worked - Ferro & Spunkmeyer obtained eggs without a problem.
They hide the egg in the bulk and got back to LV-426, re-landed. No problem.
Do you want proof? Well thirty minutes into the movie, right after deposing the M577 APC, the UD-4L Cheyenne Dropship
takes off.
30:46WHY does it take off? You may assume that's in order to protect the dropship from being attacked by aliens, but then why don't they get back into orbit? Or at least land 1000 kilometers away or something? (Acheron is big enough, 12,201 km.)
Instead, we find the dropship
landed at 1:06. And landed
right in the Hadley's Hope installations. We don't see the environment clearly, but we do see the ground is covered in metal plates and there are artificial structures in the background. So it's either the settlement or the atmospheric processor's direct surroundings.
Why did it land right in this dangerous area, if it took off to avoid it?
Another question: why does Spunkmeyer react so little to the Alien mucus? Why does he merely say "Hold on a sec, there's something?". He perfectly knows about the Alien threat. The entire mission is about it. He got Ripley's story and written report, plus both Ferro and Spunkmeyer were likely sent updated on the situation on the other troops via radio (unless they just waited for the red torch signal, which seems doubtful).
This theory actually resolves THREE plotholes:
- The Alien egg
- The dropship taking off just to land in the very same installations
- Uncautious Spunkmeyer.
Occam's razor must be favoured: choose the simplest hypothesis, which explains everything.