Cool entry! Here are my complete feedback:
* Positive points
- I like the fact to be able to switch between the characters with their own speciality, it encourages to be strategic.
- The sound design is pretty good
- It is same also for the graphics, especially the effects of lights and when opening doors, it is quite impressive
* Negative points
- I got lost a lot of time, so it was hard for me to be efficient in my movements
- The character movement works pretty well, however, visually it is weird, it seems to be stuttering (maybe linked to its rigibody interpolation)
- I felt that the Alien was too powerful, indeed, each time he attacked me, he got my character which was frustrating at times
Overall, nice job!