I figured I start a topic here to talk about this rather than posting on the suggestions board.
I will vote for 150:45000, 3 depth, engine required (as a map setting), and winning sometimes = win.
Why 3 depth?
While some mediocre counter builds will be created, the extra participation and diversity is worth more. Making the required bracket too large might hinder participation and diversity. Players who wish to prove themselves can still choose to go further and sweep, but I don’t think it should be a solid requirement.
Some stuff I notice.
The higher the credit count, and the lower the pilot:credit ratio, the harder it is to rush.
moving ship have space limitation. So stacking long range is much more effective in a high credit count map.
a high pilot:credit ratio also brings different dynamic into the game. Fighters become a major cost and undercutting them can sometimes make a drastic differences.
So for example, while RCIX SAC 19/21 works great at stopping rushes, bring that some build on SAC - 1 map and it stops working entirely. 17 easily dominates them by undercutting on fighters.
Edit: Lowered resource count.