I'm not sure about the gold globe because uniforms might get lost against it.  With proper shading, it might work though.  The anchor sounds like a better idea to me.
I think a firepower of 2 is good.  3 is a bit high, considering a 12.7mm cannon team only has 4.  Maybe a moral of 6, like the SMCs?  Them US Marines are tough SOBs, ya know.  
