I dunno what you call it in this game but others will usually call it 'food' or something like that. The number that each unit takes up in battle. Ex. X-Wings will take up 1/25 while the corvettes will take 2/25 in the battle. Does this differ from how much 'food' the unit takes in the galaxy? Or are those numbers linked
I think you're looking for . The same value governs unit cap in battles and your overall force on a galactic conquest map. The individual values are listed for each corvette, frigate, capital ship and by group for each ground company or fighter squadron.
Doing the pop cap for galactic conquest is different than skirmish. There are already many threads about this. Just use the search function to find what you need.