With a lot of serious penalties to benefits, I could get sorta behind this.
- No XP (overall and career)
- 10% of normal training stats on originating station where mission starts
- No bonds (even if VIP)
- 10% of salary
- Maximum of 21 days.
- Can't abort
- Can't train intelligence
Otherwise, it's log in once every six months, and yay! Additionaly it penalizes active players and this would be a lot of implementation headaches in my opinion. While I don't PvP, you were correct, would totally break that mechanism in game.
Gonna have to go on the good idea, but not for this. I'll bring it up at next council meeting - I simply don't think it's feasible.