Wargaming in the Third Imperium: Stargrunt II Conversions

 Converting Traveller to SGII and TW would seem to be a monumental task. Fortunately a few people have already attempted it with some success, most notably Ken Pick with his Striker Zero articles on Freelance Traveller.

 I mainly used Ken's articles, with some notes from an old forum thread about converting SGII to WWII for TL5 stuff. The result, while unfinished, covers most weapons from TL0-15, is somewhat ungainly and took several hours to put together.

Personal Weapons	Tech Level	Range	Firepower	Impact
Sling	0		0.5	D4
Short Bow	0		0.5	D4
Long Bow	1		0.5	D6
Sporting Crossbow	1		0.5	D6
Military Crossbow	1		0.5	D8
Repeating Crossbow	1		0.5	D4
Archaic Firearms (Hand Cannon)	2	Close Only	0.5	D6
Archaic Firearms (Matchlock Musket)	3		0.5	D10
Archaic Firearms (Flintlock Musket)	3		0.5	D10
Archaic Firearms (Muzzle-Loading Pistol)	3	Close Only	0.5	D6
Archaic Firearms (Percussion Rifle)	4		0.5	D8
Archaic Firearms (Percussion Revolver)	4	Close Only	0.5	D6
Standard Autopistol (9mm Auto Pistol)	5	Close Only	1	D4
Heavy Autopistol (.45/10mm Auto Pistol)	5	Close Only	1	D6
Standard Revolver (.38 Revolver)	5	Close Only	1	D4
Heavy Revolver (.44 Revolver)	5	Close Only	1	D6
Carbine (M1 Carbine)	5		1	D6
Machine Carbine (M2 Carbine)	5		2	D6
Hunting Rifle (Bolt Action Rifle)	5		1	D10
Shotgun (Pump Action)	5	Close Only	1	D10
Assault Shotgun (Military Shotgun)	5	Close Only	3	D8
SMG	5	Close Only	3	D8
Auto Rifle (BAR, FG42)	5		2	D10
Semi-Auto Rifle (SLR, G3)	6		1	D10
Auto Rifle (FN, AR)	6		2	D10
Assault Rifle (StG44, AK47, M16)	7		2	D8
Assault Rifle (with GL)	7		3	D8
Light Autopistol (Body Pistol/Snub Pistol)	8	Close Only	1	D6
Light Revolver (Snub Revolver)	8	Close Only	1	D6
Laser Carbine	8		2	D8
Laser Rifle	9		1	D8
Laser Pistol	10	Close only	2	D8
Advanced Assault Rifle (ACR)	10		2	D10
Advanced Assault Rifle (ACR (with GL))	10		3	D10
Gauss Rifle	12		2	D12
Gauss Rifle (with GL)	12		3	D12
Gauss Pistol	13	Close Only	1	D12
Advanced Laser Carbine (Blaster Carbine)	13		2	D8
Advanced Laser Rifle (Blaster Rifle)	13		2	D8
Advanced Laser Pistol (Blaster Pistol)	13	Close only	2	D8
Sniper Weapons	Tech Level	Range	Firepower	Impact
Conventional Sniper Rifle	7		D10	D10
Heavy Anti-Materiel Rifle (LAG)	8		D8	D12x2
Laser Sniper Rifle	9		D12	D8
Gauss Sniper Rifle	12		D10	D12
Advanced Laser Sniper Rifle (Blaster Sniper Rifle)	13		D12	D8
Support Weapons	Tech Level	Range	Firepower	Impact
HMG (.50 M2HB)	5		D10	D12
MMG (Vickers, .30 Browning)	5		D10	D10
LMG (Belt Fed, MG34)	5		D8	D10
LMG (Belt Fed, MG42)	5		D10	D10
LMG (Magazine Fed, Bren)	5		D6	D10
Anti-Tank Rifle (Boys AT-Rifle)	5		D8	D12
Early IAVR (Panzerschreck)	5		D10	D10*
Early RAM-GL (Panzerfaust)	5		D8	D12*
Early IAVR (PIAT)	5		D8	D10*
Early IAVR (Bazooka)	5		D10	D8*
IAVR (Rocket Launcher)	6		D10	D12*
GPMG (M60)	6		D8	D10
SAW (Minimi)	7		D8	D10
IAVR (Dsiposable Anti-Vehicle Rocket)	7		D10	D12*
GL	7		D8	D8
Auto-GL	7		D12	D8
4cm RAM Grenade	8		D10	D10*
Auto RAM-GL	8		D12	D10*
GMS/P	8		D8	D12*
MLP	8		D8	D8*
Rotary SAW (Advanced LMG)	10		D10	D10
Infantry Plasma Gun (PGMP-12)	12		D6	D12*
Gauss SAW (Gauss LMG)	13		D10	D12
Infanttry Plasma Gun (PGMP-13 and 14)	13/14		D6	D12*
DFFG/1 (FGMP-14)	14		D10	2xD12*
IFG/1 (FGMP-15)	15		D12	2xD12*
Infantry Plasma Gun (Plasma Rifle)	16		D6	D12*
Vehicle Weapons	Tech Level	Range	Fire Control	Impact
(MRL)	6
RFAC/1 (CPR Autocannon)	7			D10
RFAC/2 (CPR Autocannon)	7			2xD10
HVC/3 (CPR Gun)	7			3xD10
HVC/4 (CPR Gun)	7			4xD10
HVC/5 (CPR Gun)	7			5xD10
GMS/H (Tac Missile)	7			4xD12
GMS/L (Light Tac Missile)	8			2xD12
HKP/3 (Improved Hypervelocity CPR Gun)	9			3xD12
HKP/4 (Improved Hypervelocity CPR Gun)	9			4xD12
HKP/5 (Improved Hypervelocity CPR Gun)	9			5xD12
HEL/1 (Laser Weapon)	9			D8
HEL/2 (Laser Weapon)	9			2xD8
HEL/3 (Laser Weapon)	9			3xD8
HEL/4 (Laser Weapon)	9			4xD8
HEL/5 (Laser Weapon)	9			5xD8
GAC/2 (VRF Gauss Gun)	10			2xD12
MDC/3 (Mass Driver Guns)	10			3xD12
MDC/4 (Mass Driver Guns)	10			4xD12
MDC/5 (Mass Driver Guns)	10			5xD12
DFFG/3 (Plasma A Gun)	10			6xD12
(Remote MRL)	10
DFFG/4 (Plasma B Gun)	11			8xD12
DFFG/2 (Pulse Popper)	11			4xD12
(Light MRL)	11
GAC/1 (LRF Gauss Gun)	12			D12
IFG/3 (Fusion X Gun)	12			6xD12
DFFG/1 (Vehcile Mounted PGMP)	12			2xD12
DFFG/5 (Plasma C Gun)	12			10xD12
IHEL/1 (Improved Lasers)	13			D8
IHEL/2 (Improved Lasers)	13			2xD8
IHEL/3 (Improved Lasers)	13			3xD8
IHEL/4 (Improved Lasers)	13			4xD8
IHEL/5 (Improved Lasers)	13			5xD8
IFG/2 (Pulse-Popper)	13			4xD12
IFG/4 (Fusion Y Gun)	13			8xD12
IFG/1 (Vehicle Mounted FGMP)	14			2xD12
IFG/5 (Fusion Z Gun)	14			10xD12
(Meson Accelerator)	15
PPG (Plasma Rifle)	16		D6	D12*
Vehicle Component Availability by TL
Power Plants
CFE (Internal Combustion Engine)	5
CFE (Improved Internal Combustion Engine)	6
CFE (Gas Turbine)	7
HMT (Advanced Turbines/MHD/Fuel Cells)	8
FGP (Fusion)	9
Mobility Types
Wheeled	5
Slow Tracked	5
VTOL (Helicopter)	6
Fast Tracked	8
GEV (Hovers/Blowers)	9
Grav	10
Grav-VTOL	12
Max Vehicle Armour
Size Class -1	7
Size Class (Composite Armour Introduced)	8
Reactive Armour	8
Ablative Armour Introduced	9
Size Class +1
Max Systems Quality
Basic (D6)	7
Enhanced (D8) (Soldi State Electronics)	8
Superior (D10)	10
Superior +1 (D12)	13
Infantry Kit
Body Armour Standard Issue	8
ACRs	10
Gauss Rifles	12
Power Amrour	13
Weapon Systems
Anti-Artillery Systems	10
PDS and ADS Systems can knock down incoming Artillery fire	10

Armour	TL	Armour Die	SG II Notes
Jack	1	D6
Mesh	7	D6
Cloth	6	D6
Flak Jacket	7	D6
Combat Env. Suit	10	D6
Combat Armour	11	D10
Battledress TL 13	13	D12	Treat as slow PA
Battledress TL 14	14	D12	Treat as slow PA
Battledress TL 15	15	D12	Treat as fast PA
Vacc Suit	8	D6
Hostile Env. Vacc Suit	10	D8

 The next step is to work on a Tomorrow's War conversion. While I haven't started it yet, I do believe it will be much easier in some respects. TW makes no distinction between different personal weapons, other than to note the general type. A squad could be equipped with, Traditional Slug Throwers (TSTs), Advanced Ballistic Weapons (ABWs), Laser Weapon Systems (LWSs), Gauss Weapon Systems (GWSs) or Energy Weapon Systems (EWSs). The premise being that each of these weapon types if used as the squads main personal weapon, will function in much the same way as any other, TL plays a part but the major factor affecting the weapons effectiveness in combat is the troop quality of the soldiers wielding them.
 All support weapons require a stat block to describe them, but most of that stat block is determined by what type of weapon (TST, ABW, LWS, etc.) and whether it is rated as Light, Medium or Heavy. In a squad, support weapons merely add Firepower Die to the squads total, +1 for Light, +2 for Medium and +3 for Heavy Support Weapons. When fielded as a separate Weapons Team, the weapons team will roll slightly more firepower die than the same weapon in a squad, this is due to the difference in roles between the squad based weapon and the weapons team. Vehicle weapons are defined in a similar way.
 Basically when converting Traveller weapons to Tomorrow's War, one should be able to simply define a Traveller weapon as belonging to a TW weapon type/role. For example a Zhodani Lift infantry squad might be equipped with Gauss Rifles (GWS) and maybe a PGMP-14 (EWS) as a squad support weapon. Whereas their opposition, the Imperial marines, might be equipped with the PGMP-13 (EWS) as a personal weapon and an FGMP-15 (EWS) as a squad support weapon. The support weapons are the only weapons that need a stat block. In combat on the table top, what counts most is the troop quality which determines what die the squad will roll, D6, D8, D10 or D12. How many are rolled is determined by the squad's manpower (1 die per man) plus any extras for support weapon(s) and then finally add a fire power die for each TL the firing unit is above the target unit, (e.g. A TL13 Imperial Marine unit firing on a TL10 Rebel unit gets an additional +3 Firepower Die).