If you have a key to a station, then the station guards should be in your group (and thus not attacking your mines or being affected by said mines).

+1. Kinda lame when they help the enemy take the station.

I suppose a mission at the station would let you initiate the group, as opposed to automatically giving you group when a key goes active?

+1 to a mechanism by which mines can be not targeted by your minions. Perhaps this should be a per-key setting so that station owners can let trusted members set up mines while still having the guards clear out mines laid by less trusted members.

Make conq station guards not shoot mines at all. It was more fun when mines were a useful tactical weapon in station wars.

It was also fun when I could mine inside NFZ. We can't all get what we want.

-1 to an actual group, as this would mean you could not actually take most missions while the group is active. Also if you were on a mission, and had to run to the sector to defend, the mission would abort if a group was created while you were in sector.

+1 to ARF, it is not like the guards are there to defend hapless newbs from mines, and attackers generally do not mine the station in order to conquer it, it is primarily used as a defence so it makes little sense that the guards would destroy them.