I was doing the SCUBA intro mission, the controls for the SCUBA system are great, the weapon they give you is neat as well, I don't keep up on military technology but I didn't know there was such thing as a dual purpose 5.56mm rounds and magazines using them underwater didn't really give me a good insight on what the difference was between the two different ammunition types it gave me but I assume one is built for water obviously the other not so much.
I did have some trouble with capturing the AA vehicle it told me about, I couldn't seem to get in or see what it meant by capture, this may be a bug or something but I couldn't seem to accomplish the task of capturing it regardless of how many enemies I alerted or took down