@jack07 Phenomenal job. You absolutely should be 200% happy with the end result. You’ve clearly put a lot of work into this model and it shows! If I had one tiny critique it would be that the edges feel a little on the sharp side. The closer I get I can certainly tell it’s all smoothed via subsurf, but from the distance in the render, it could almost be mistaken for lo poly. But it’s a minor note. You earned an A this week easily!
Now, let’s say I want to make it game ready, would this be okay to bake normals to a simplified mesh?
Yes you can bake very good normals from your subsurfed model down to a lo poly version. In fact that’s arguably the highest quality technique for hard-surface game models. You can find a lot of examples by looking for Halo 5 assets on artstation like this one.