yeah, that was one of my favorite strategies in TA, having aircraft being constantly produced and patroling around my base, with aircraft repair pads place at intervals under their flight paths, so it was a self repairing, extended line of sight defense system that could also be used for quick offense
i think +shootall is for telling all your units to attack enemy structures and resource collectors automatically, instead of the default behavior of only auto attacking other combat units
i love how TA is so dynamic
it was really fun playing lan games where we'd team up and divide the responsibilites, like i'd focus on offensive units and maneuvers, someone else on defense and long range artiller, and someone else on resources and base management