The first one isn't a big deal but for Marines it's oorah.
Second, Marines aren't soldiers. You never call a Marine a soldier. Also you wouldn't call OP a Marine because he hasn't yet earned the title. Soon he'll be a recruit/pvt. Or his DI will probably call him something along the lines of maggot.
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True, all true. My DS called me F***ker. Im a soldier, not a Marine. But i know quite a few Marines. Went to AIT in Fort Lee, the Marine barracks was immediately to the left of mine