The Blues centre-half played the full 90 minutes for the Pirates in the West Country derby. To date, Packwood has made seven appearances for Rovers.
John Ward's side have now picked up five points from their last four matches, but remain just a point above the Sky Bet League Two drop zone.
Meanwhile, Blues full-back Amari'i Bell played the full match for Nuneaton Town in their Skrill Premier League home fixture against Alfreton Town.
Nuneaton were comfortable 3-0 winners; a result which saw them leapfrog their Conference rivals into fifth place in the table.
So far this season Bell has made 18 appearances for Nuneaton.