Last night,I came up with an idea for a plug.
I can't be bothered making it,so I thought I might post my idea up here in case anyone else wanted to use it.
Here goes:
The UE/Confed/Rebels/Miranu/Whoever do some exploring,and come across a race.
The race's ships have no shields,and do not respond to hails.
Their only weapon is a fluctuating-power laser beam,which does heavy damage to shields,but very little to armour.
Through the course of the missions,it emerges that the aliens use laser beams for communication,and while the player thought that they were attacking,they're actually saying "Mercy!We come in peace!" etc,etc.
Just thought someone might like it.
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"Render therefore unto Caesar the things which are Caesar's."
-St. Matthew's Gospel 22:21