I play bgs a lot and i can assure you that it doesn’t work this way. Whatever strategy youre trying to achieve its always better to rrun away from players. Even if lets say 1 stays defending. This mode becomes a race more than anything. There is no reason to defend 1 flag tbh. You can win this mode naked with no gear/weapons lol. Its even worse on big maps like the arena or the university
It's because people don't have to actually grab the flag. Who ever has the most players near or on the flag will always capture it. So it's kind of silly for one player to try and defend the flag from two players or more because the flag will just turn anyway even if the guarding player is not killed..