only prob is theres not enough data on how strong either side is. from the tv series and movie they only show like 1 fleet/divsion, things may be differnt in other fleets. zen maybe few but better while the meltran fighting them might have tons of units but lacking in expertise to defeat them. its been awhile since i seen the tv series but i think they only show Millia making kills and in the movie coarse she making kills but also another that gets shot down.
also the bad guys dont get focus on when they killing tons of nmes, look at M7 tons of vf-11s got blown up but never shown which one realy killed them.
there might be an ace zentran in a regult in another fleet but we never know.