You must travel 5 systems & return 5 mins ago

[dHay]

I'm assuming the mission in Campaign 2 reads like the following:

The TCN has agreed to supply our forces with weaponry, covertly. Go to the TCN starbase in the Oloron system and pick up a cargo load of Quantum Warheads. Bring the warheads back here without being stopped or diverted. The Xiati appear to be employing the Pirates throughout the neutral territories to help in their war effort against us. The Pirates have been attacking supply shipments trying to get through from our Terran allies. You may encounter Pirate or even Xiati warships trying to prevent your cargo run. May the vapors guide you.

This is "Abbidon Operations 2", which gives you a time between 100 and 120 days to complete.