i know a bit about 3D modeling ^^ here's what i suggest
first off- your model is really rough, almost painful to look at :p jk. but in all seriousness, you need to subdivide your arms and hands. its probably not going to be a good idea to subdivide the whole thing, i suggest you subdivide sections, bands (i mean like a horizontal circle, around the arm for instance) or even individual faces.
2nd- i noticed that your clip doesn't like to stay with your gun
that's because its part of the gun, but it isnt grouped with it (i think that's the case anyway) for simple renders, dont be afraid to keep 2 of the same object around at the same time. one for the guys hand, one for the gun. or maybe you just got lazy, and the clips a separate object all together
anyway, you have good camera control, but you over did it. human eyesight is unique to other animals in the fact that we have very good peripheral vision, so jerking our heads around to see what we are doing isn't realistic. if you keep the clip just barley in your cameras view, it will work fine.
and that's all i have to say for now, keep up the good work
