Question: 2 things. 1) The escape pod with Ripley inside is heading for land in the overhead shot on its way down to the planet's surface...how does it end up ditching into the sea? 2) Who does the bleeding garment belong to at the beginning of the film? If an alien had burst from Newt or Hicks wouldn't that have shown up in the autopsies? And where did THAT alien go? And it couldn't have been Ripley her chest is obviously still intact.
Question: Assuming that Ripley wasn't infected with the queen before ending upon fury 161, would the facehugger implanted the queen embryo into the dog/ox or use one of the prisoners assuming it can choose which embryo to deposit first.
Answer: It could be the Facehugger either has a short life span or a short period of time to lay her egg.
Answer: During the opening scenes, there was a quick image empty egg sack below the bulk heads. The Queen, from "Aliens," layed it before she was blown out into space. That "alien" laid a "Queen" egg inside of Ripley. They later performed an autopsy on Newt and Hicks and there was no eggs inside of them. As for landing in the ocean it wasn't programmed to properly land. It was purposely dropped there so the "Corporation" couldn't explain the loss of the colony on the alien planet.
Doesn't explain the blood stained garment still. Who did it belong to?