"there are numerous ideas flowing about the flat bed!!"
You've definitely got the basis for several modular vehicle systems both military and civvie with this and your previous flatbed vehicles:
*AAA with quad light flak cannons and enclosed gunner cab
*Air Defense Missile System with enclosed gunner cab
*Twin medium flak system with enclosed gunner cab
*Light artillery auto-RAM howitzer module
*Heavy mortar (160mm) on powered remote mount with auto
loader system
*Improvised "gun truck" for convoy escort duty
*Cargo load consisting of barrels
*Cargo load consisting of ammo boxes/crates
*Cargo load of miscellaneous civilian nature (ie., chicken coop/local fauna equivalent, whiskey barrel, beer twelve pack, case of dynamite, spare tires, jerry cans, etc.)
*C-cubed module
*MASH unit module
*Engineers field repair wagon module including waldo crane
arm
*Enclosed cargo module (ie., *HDS* interstellar parcel
delivery service -remember Ace Venture, Pet
Detective? I've concluded that Ace was ahead of his time,
and that HDS stands for *Hyperspatial *Delivery *Service
Bwahahahaaha!!!
)
*Field refueling tank module
*Firefighting module including light bar for top of cab
*Law enforcement paddy wagon module complete with barred
windows (prisoner breakout scenario, anyone?)
*Back Hoe digger vehicle with additional stabilizer jacks
*Utility repair module
*Spaceport ship tow vehicle
*Spaceport cargo loader with scissor lift cargo bed loaded
with luggage
This'll keep you busy, I reckon

Leland R. Erickson
P.S. Am I the only one who sees Wombat being one-stop shopping for a 15mm spaceport table layout
?