Overall a very detailed concept document for a fairly complex game with a load of interesting features. The inspirations are clear, and the concept art generally gives the reader an understanding of how the game will look and feel.
Having said that, I would encourage you to be very wary of scope, and what is possible within a short timeframe, regardless of programming skill level. 6 (!) different types of movement mechanics are listed, along with entire systems around weapon management, hostages, grendages, cover, AI, accuracy, lighting, environment, etc.
You should prioritise the list of features after careful research (through perhaps the game modelling process taught in the lectures) of how feasible each one is to achieve, as well as how necessary they are to the game actually being fun (and for the assig 3c rubric).