1. I extruded two faces on the side to make a missle pod and a minigun pod.

2. For the missle launcher, I extruded faces back in the world axis using the 3 step method (i.e., little with scale, little with scale, then a lot). This created the master tube.

3. I created a very small Torus (see channel box). I will clone this to create the armature that holds the missles in place