So in this build, if you mark an area to attack to a group of units, they will go there and... gather around marked circle. I was testing planetwide patrol with 1k units, than I decided that it's enough and I should kill AI. I ordered area attack base and all the units just gathered around. I tested it later with smaller amount of units that were not doing anything, effect is always the same. Units gather around in circle, those who were already in the area move towards center. While it looks hella cool, it's not effect that I'd expect from area attack. However, dammit, this should be kept in game as separate feature! The possibilities. Order units to gather around enemy base in perfect circle and attack from 360 degrees - omg. BTW, 1k units planet patrolling, sim speed is 10. Uber server. 2k caused it to go to 5-7.