Essentially, (I imagine) it's because there is already one of the largest selections of War Engines in what is already a relatively spartan squat list, combined with them being an army that traditionally has such large units like the Land Train, colossus and Overlords/gyrocopters as rather iconic components in it's force, alongside the stunty biker gangs.

If you make too many limits on their war machines they run into the danger of losing some of their flavour, so I assume it was the intent of making the War Machine section focus on the *BIG* war machines and the somewhat smaller/lighter stuff sneaking on by. Perhaps the overlord does need limiting, through a one-per-brotherhood "air wing" gyros and overlords section or some other way, but a choice that pigeon-holes squats into taking too many infantry and not enough war engine stuff is just as dangerous as over-permissive options (IMO, of course).

Overlord is to squats what shadowsword/bane blade is to gaurd so I agree it shouldn't be in the WE section.

disappointing to have to wade thru all the terrain waffle in a thread about Squats...could have been taken to a more appropriate part of the forum...

Basically the anti list talked about on this thread. I've gotta say, I like it far more than the list I came 2nd in a tournament with earlier this year (which had 2 overlords and bezerker spam). It's more mobile, but has far more durability.

It also reinforced my view that removing spotter is basically the only nerf the overlords need. It's the synergy with the big war engines that makes them powerful - ie being able to drop 11bp on something with indirect fire from the colossus or 4bp macro from the landtrain. Also, the epic UK move to remove the massive overcosting of warriors makes them a totally viable unit.