For example the paths on"Dual Core" map are way too narrow, units try to cut corners and get stuck.
At least the start spot should always be very open without narrow paths. Its no fun guiding ie a constructor around such maps.
Also on this map my first constructor got stuck on the cliff and could not get away:

Good maps were:
The yellow 4x4 map (Marble Madness?) for 1v1
16xSpeedball for up 1v1v1
The games on other maps sucked a bit tbh.
Also it seems nobody can really play Hacker or Network but playing System all the time is a bit boring.