Hey guys! I'm about to setup a roleplay server. I've got a view ideas already but to make them work I need to install some plugins. I wasn't able to find plugins for all my needs so here I am, describing them so maybe one of you can help me here.

There are going to be two groups. Attackers and Defenders (names are not final). Every player will be put in one of those groups right after joining. The idea is, that players are only allowed to kill / raid players of the other group. But for that to work players must be able to recognize bases by their group, just by seeing it.
Placing signs or using a specific kind of building style wont work because those things can be manipulated too easily and would be too hard to moderate.

So my idea was creating zones. Zones for group A and zones for group B. Players of group A would only be able to build in zone A, and players of group B would only be able to build in zone B. That way everyone would instantly recognize bases by the zone they're in.

I know you can enable / disable the ability to build in zones - but can I somehow make that group specific too?

If anyone could help me here - or can come up with a different idea - that'd be great!