First some background. I got inspiration from manga Gate - Thus the JSDF Fought There. Medieval fantasy army against modern ground force, and it is depicted as you'd expect. Bulk of fantasy army is humans, commanded by humans, and other races in it (orcs, trolls, wyverns... typical fantasy brutes) are trained and commanded by humans. At the top of the world is Empire which commands number of vassal states.
Becouse Japan isn't military powerhouse nor does it want get other nations involved, attempt is made to negotiate peace. Even though some in the Empire get it just who they were frakking with, others do not, and peaceful solution doesn't happen.
First serie of novels has been finished but not translated, and manga (fan translated) is less than halfway. So what I do here largely comes out of my rear. Main JGSDF force goes offense towards capital city, but player isn't part of that. Instead player commands small reserve force from main base of operations (around the stargate). Large force from Empire's vassal state approaches nearby town, Italica. Italica is allied with JGSDF and houses refuel point for helicopters.
River in the north is super river (see attached map file).
Settings:
Scale: 5 km/hex
Time: half-day/turn
JGSDF units on the map:
Supply & HQ unit(s) near the town
Mortar company (120 mm)
Mechanized company (Type 96 APC)
Tank platoon (Type 74 MBT)
Towed howitzer battery (105 mm)
AAA battery (towed Oerlikon cannons)
SPAAA battery (M163 VADS imported from USA)
Few small recon teams of various wheeled vehicles (from Toyota High Mobility Vehicle to Cougar MRAP imported from USA, 3+ vehicles per unit and at least one Panzerfaust 3 or other AT weapon per unit)
One unit (platoon maybe) of Huey helicopters with door gunners and full infantry load
Few units (3 maybe) of recon helicopters, 2 in each (do you recognize model?)
Reinforcements:
Small unit (platoon) of AH-1S helicopters with mix of AA missiles and Hydra rockets (early)
Mechanized/armor battalion in up to company sized units. HQ, recon units, and wheeled mechanized company (companies?) come first about half way through scenario. Tank companies (Type 90 MBT, part of the battalion) and IFVs (Type 89) come 2 turns (1 day) later. I have no idea about structure of JGSDF mechanized battalion (or any company for that matter).
JGSDF's allies:
Italica garrison unit (includes ballistas, 2 per gate)
Italica militia unit (spears, no armor)
Italica (horse) cavalry unit led by knight squad
Objectives for JGSDF & allies:
Defend Italica
Protect surrounding villages
Beat the enemy
Don't let any get away!
JGSDF supply unit is already in place next to Italica. JGSDF units come from east or south. Both approaches can deliver supplies from main base of operations. No air supply, becouse that is goes for main JGSDF force heading towards capital city (way outside the map).
Fantasy army:
I'm thinking about using units from this scenario. I have in mind 20,000 for total body count. Mostly humans, but also orcs and trolls, and one group of wyverns (or whatev source scenario has to offer) large enough to burn down small recon groups and Huey platoon. Otherwise... dunno.
Objectives for fantasy army:
Link up with main force from the Empire and crush invaders from other world
Plan B: burn crop fields, kill livestock, punish those who allied with invaders
Retreat to north and destroy bridge
Fantasy army deploys on the west along the road. It should have chance to meet its objectives. If JGSDF player clusters all it can at Italica without any attempts to slow or distract the fantasy army, then it should be able to take Italica and retreat across the bridge by the time JGSDF reinforcement battalion comes kick them out of town.
Things I need help with:
Units from WotR PBMv04f.SCE file: how?
Looks like those units were not meant to be used with or against vanilla game units. Some rebalance required here... Any ideas?
What force structures do you recommend?
I have general idea about hardware available for JGSDF and what should be in recon teams, but I have no idea about the rest...
Any ideas to further decorate the map?

