Admin shuttles are only capable of speed 6 in SFB, not speed 20 as in SFC.
I added in multi-role shuttles, mine layer shuttles, mine sweeper shuttles, etc. for all the various races that use them in SFB, into the common SFBSPC13.TXT shiplist file we use in the SFC 1 LAN games here. MRS shuttles do OK in system and space station defence, especially if the enemy hasn't worked out what they are.
The Klingon MRS-B are pretty effective against freighters and lesser warships, especially if a group of 3 or 4 MRS-Bs fire their Drones simultaniously at a target.
All the additiona;l shuttles have to be pre-deployed using FMSE in a scenario.