Rct's really shouldn't be shooting as well as they are. Our OfC's, of course, have the training, and experience. I guess that Rct - 04 or 03 should really be missing a lot of their shots. 03 or 02 have some minor experience, so they can improve after that. 01 and OfC up can start hitting a lot of their shots, but still miss quite a little. DvL and up should be hitting most of their shots, with very little shots missed.
Resistance by rights should miss more than citizens due to them being always on the run, undernurished and starved from the bare rations citizens get. Also, you forgot to put the SeC in, he is above COTA units performance wise.