and we had lost several maps that had the vbases setup in a way that was greatly contributing to a more challenging and varied combat environment.
I don't have pictures of any of those maps anymore, but let me show something that might explain what i'm talking about.
The standard setup is one Vbase with one (or occasionally more) spanws into it. That means having a defender with all the home turf advantages AH has to offer and one attacker that is for all purposes already "dead" when spawning in. Most of the time the defender either sits on concrete, listening for enemy noises or camps the spawn.
We had at least one large map in the past, in which we had long strings of interconnected,
paired Vbases similar to this setup on Ozkansas, at quite a distance from the next airbases:
Two bases that closely means there is a much smaller "home turf" zone for everybody. The two spawns mean that you can get into battle quick, but the base proximity means also that both sides have a reasonable chance to drive back and land their kills or costly perk tanks - which generally results in players willing to take more risks, instead of sitting just there. Both sides can and will be flanked, so you cant just focus your attention on a very small spawn area.
Each time Ozkansas comes up, there is a lot of action there, from simple spawncamping to armored sweeps - until one side flattens all hangars and captures the base. On the map I do remember that did happen too, but as there were a lot of those vbase pairs, it didn't cripple the ground war totally.