YES!! Gosh I must have typed this into this thread three times already now :P
1) Taxi to parking
2) Aft left AUDIO panel
2A) Rotate main selector dial to GND CRW (or something similar, can't recall at the moment).
3) Use the re-arm re-fuel window as you normally would
4) Set up your DSMS stores manually or use the DTC DSMS upload (FYI: works ONLY in the sim, will now work in the real thing IIRC...)
5) Reset audio selector to VHF AM
6) Taxi out to takeoff and kick ass!!
Note: the only reasons why this would not be possible is if the airbase isn't friendly, there are no more weapons available (see warehouses) or all ground units at the airbase are destroyed.