I like the idea of the longer a guild holds a tower the easier it is to take it. For example every minute the flag loses 1 hp, or if a guild holds it long enough, the members have a death cooldown before respawning, or a health debuff, or have it based on the certain amount of hours done to that specific tower by that guild in a week to encourage basing at different places and not have the same guild own a tower for a year. It kinda sucks when newish players wanna tower but have no chance of ever getting one without joining a huge ass guild rather than make their own.