This is my latest green screen effort.  It involved a subject moving through the scene along with a camera movement that transitioned from a long shot to a medium close shot.  I broke the effort down into the following stages:

1.  Using the original footage, I fed it first through a NukeX Lens Distortion node to remove the lens distortion (necessary both for camera tracking and for proper CG geometry placement in Maya).

2.  Once undistorted, I ran the footage through Syntheyes 2011 in order to get a solid camera track.

3.  With a good matchmove solve, I imported the results into Maya 2015 to begin the CG environment setup.

4.  Once I had the CG environment created, I added several visual effects:  a fluid tank to simulate fire in the oil drum and several fire effects to simulate the gun shots.

5.  I then added several Maya texture projections to the oil drum, the light cycle, and the crates (some of them distressed to simulate wear and tear).

6.  Once this was finished, I rendered out the image sequence from Maya (took four days to complete).

7.  From there, I brought the Maya footage back into NukeX for the final comp and scene tweaks.

8.  Once final tweaks were complete, I rendered out the NukeX image sequence, imported it into Adobe Premiere Pro in order to add sound effects and music to complete the video.  Hope you like it!