Or just have MotF pop up a minute or two into every round, then infantry gets to fight for control of the flags, while archers hide on a hill on the outskirts of the map.
The "fix" to ranged being "OP" (in numbers) is to give infantry an objective to fight over. This will be a lot better than having them run around in circles chasing archers, or camping behind a building for 4 minutes until motf pops up.