This post will cover some misinformation and other unknown mechanics in the alien antag, as I've seen a lot of it
1. Alien embryos do not require the host to be alive
Alien embryos do not need the host to be alive to fully hatch, only the implantation from a facehugger requires that the person be alive. Please stop LOOCing aliens complaining you got killed.
2. Aliens can consume the dead for a significant health increase
Aliens can use the devour command on dead carbon mobs for significant healing, getting 10 units of sacid in their system
yes this permakills the person you ate
3. A large amount of alien structures can be placed on each other
with the exception of eggs, most structures can be placed on each other
This will probably be changed soon enough
4. Alien corrosive acid breaks down walls and floors
it doesn't, it kills people very quickly though
5. Aliens can put out fires on themselves by going into space or stop drop and rolling
Very few people know this, it's rather helpful however
6. Aliens can process viruses
Pretty unknown, but they can be affected by good and bad viruses
7. Aliens are affected by electrical shocks
Aliens take shock damage, breaking shocked grills is a generally bad idea
8. Aliens can be handcuffed
Aliens and alien larva can be handcuffed
Perfect for arresting them?
9. Aliens can be bola'd
Aliens can be bola'd, they can still still break out of it very easily
OTHER NOTES:
Aliens get plasma from plasma
STUFF THATS INTENDED BUT NEEDS TO BE FIXED:
alien eggs auto ejecting face huggers to a target near it (done in a pr made by me)
Other aliens getting a message when the alien queen dies
Hunter leaps working in 0gs (this was removed to effectively cover up an issue with alien code, it should be fixed and readded)
If you have any questions on aliens, feel free to ask them