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This suggestion gives Technical more RP value, The only technical staff that are captured are Head of technical and sometimes Deputy Head Of Technical, This makes technical more then just target practice for non-foundation groups.
For the raiding system, I think it should be either group can start a raid every 10 minutes, After the first raid called ends the other group is able to raid 5 minutes after the raid, Just enough time for MTF/RCF to clear the site from most threats.
Since two groups are sharing raids, The highest ranking on after all units inside are killed or captured they can do advert (OOC) All units in (Group) Have been terminated. The info should not be used for RP value apart from the other GIO group starting their timer.