Max updated his targeting scans and plotted a path forward. Nico had swung wide left, and was coming back across the line toward his artillery.
The enemy seemed to be coming from a single point and spreading out, not from the multiple cities and portals, as Max had suspected at first. That meant that these aliens and warriors must have come through together, and that the other portal sites were going to have mixed targets as well.
It would explain the sudden change in alien species, as well as the uniformity of targets once they got started.
However, letting Nico get in front of him would stop his artillery bombardment, and mess up his advancement plan. He was going to have to push forward more quickly instead of sweeping them up in a wide net and then closing it on them, as he had been intending.