Strum Wealh, on 09 April 2014 - 11:20 AM, said:
AFFS in 3050: ~77 'Mech regiments (down from ~87 in 3039)
AFFS 'Mech weight class distribution: 30% Light, 40% Medium, 20% Heavy, 10% Assault
(source: Faction Assignment & Rarity Tables, pg. 03)
We know that one regiment is 3-5 battalions & that one battalion is (usually) 36 'Mechs, so we can say that the AFFS had between 8316 and 13860 BattleMechs (not including allied mercenaries) in service as of 3050.
Well, was just using two (not-entirely) random examples...and Ah! So that's why the graph feels off. I'm not doubting your math, but it's those two additional facts (mostly the 2nd one about the 30/40/20/10 tonnage class distribution) that's missing. That sorta needs to be referenced or something (even if it's a "please see table 10-2" for those break downs). Without that, it seems that there's equal weighting to the classes since everything is noted as 1 in 1000 (ie 25/25/25/25). It's not 1 in 1000 mechs, it's 1 in 1000 assault mechs, etc.