Since placing the marine landing zone can be tricky for some maps, and reading through text notes is also not as natural, I got the idea to make images to show the route I use. I'll give a brief explanation of some of my choices with each image as needed.

1. GAEA

Select AT-POD first, and place it first as shown by the green numbers. This marine can be controlled immediately to skip attacking the pod, and the closer marine has NORMAL weapon, which will cause it to attack the base first.

I've had this game on my radar for a while, and just happened to check this board a few days ago... so I made a thing you might find useful, or maybe someone will. The blue crosshair is where the base placement cursor starts before each mission.

It's at game resolution, so open the image in a new tab or download it.

(This post has been updated, and the maps should now be 100% accurate, as well as now showing marine starting weapons, where blue is NORMAL, yellow is AT-MMR, and red is AT-POD.)