There are 4x the number of bases compared to players. That in itself breeds avoiding combat situations and even
rewards players for milking towns and factories constantly. With 50 players on total, we don't need 150/200 bases.
But, ....always a but

some of us like the strategy part of the game too. And trust me, very few ever resupply anything... ever.
I've spent countless hours being the only one resupplying strats, because no one else wanted to, I guess. But if you want radar and bombs, you have to. It's part of the game.