.My feeling is I want better communication tools for my group...which is all guild tools really ate. Never understood what people's issue is I have played in games with guilds and have never experienced your horror stories. Likely because if you use a pvp flagging system you just turn the I want to have douchebags screw with me flag off. Proble solved. Call it high grade ecm.
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Better communications I can agree with. I guess I have seen the other side to the guild problem, might not be relevant here (but I think it will be). When I played BF2 and BF3, we didn't have guilds, we had clans. I have seen clans descend on a server (64 player), stack one side and completely dominate until all non clan people had left in disgust. I have played on Clan servers where 'local rules' stated that only Clan members can access aircraft or armour. Thus I can imagine how it would eventuate in ED. Yes, some guilds might play nice, but mob mentality would ensure that some guilds would decided they are gods and make the game unplayable for anyone unlucky enough to venture into their territory.
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As for your PVP flaggings, technically we have that already, it is called 'Clean' status. Does it stop pirates etc. attacking those clean players? No of course it doesn't. If your PVP Flagging makes it impossible for another ship to target it, guarantee it would be abused as an exploit. Otherwise you have just described Solo lol