This is an exceptional "sample" of FSX Mission building for Military flying. "Bridge Tufa" is a free mission, built 5 years ago by Ed Olander, using droppable bombs.
Mission will engage you to :
- bomb two bridges
- provide cover to a downed pilot until
CSAR heli picks him up by destroying incoming vehicles
- carrier landings for re-arming and refuelling.

https://www.youtube.com/watch?v=cGh2WBKGFYQ

So, I converted the mission for use of CS Weapons inside it :
You can use guns, rockets and bombs for accomplishing the various tasks of the mission.
Also replaced effects with the flak & AAA ones, as in the video.

For the files needed for converted mission, see here.