Yep, but we can discus this.
I think that the "time before battle" and the 1 spawned player by second are good ideas.
But I think that it should be fair.
So the two sides should spawn at the rate from the beginning (for the server sake) but they shouldn't be able to attack the other side before a defined time.
I think that the actual system should be good for siege battles but not for the open field battle or village battle.