Generic Miniature wargames with kids

Dear James, Daniel and Emily,

So I have played a lot of miniature Tabletop Wargames over the years, although it has been several years since I played on any regular basis with any other adults. Since I started painting again I was thinking about how I could somehow play with James and eventually the other kids. The thing is I have miniatures from a lot of different games and think it would be fun to use all of them interchangeably rather than try and teach them all the different games. And maybe even set up games with his Star Wars figures (or maybe even Lego). A friend of mine had joked about creating a universal game system, but we had never actually gotten it going.

So today I sat down and started thinking out a very basic system. The idea is keep the basic rules very basic and generic. Then when we want to add figures from different games we can just come up with flavor and special abilities for that group.

Here is the basics I have sketched out so far:

Generic Miniature Wargame Rules

Figure Stat line

Shooting Skill: 1-6, 6 being highest. Shooting is a flat target number of 2+ to hit, modified by range and cover.

Fighting Skill: 1-6, 6 being highest. Fighting is a flat 3+ to hit, modified by opponents fighting skill.

Wounds: 1+, most figures will have 1 wound, only exceptional characters, vehicles, monsters will have more.

Armor: 1+, Determines if a hit wounds or not, compare damage of weapon and armor value, if damage is higher a wound is scored.

Move: 1+, Measured in Inches, modified by Special abilities and terrain.

Weapons

Close combat weapons

Swords, Knives, Axes etc: Damage 3

Pistol: Damage 3 in close combat only

Power weapons (Lightsabers, power lances, Monstrous Claws): Damage 6


Ranged Weapons

Pistol: Damage 2 in ranged combat Short Range only

Shotgun: Damage 3 Short Range only

Submachine gun, Assault Rifle, Blaster: Damage 4
Short +2 to hit, Medium +0 to hit, Long -1 to hit

Machine Gun, heavy blaster: Damage 5/3 (first number is when only shooting 1 target, second number is when targeting multiple targets up to 3)
Short +0 to hit Medium +2/0 to hit Long +0/-2 to hit

Rocket Launcher: Damage 6/2 (First number is when only target is hit with AP rocket, second number is when explosive rocket template is used)
Short (cannot be fired at short range) Medium +0 to hit, no template Long +0/+2

Cannon: Damage 7/3 (First number is when only target is hit with AP rocket, second number is when explosive rocket template is used)
Long Range only

I haven't figured out certain details like what the range bands will equate to and how to work out the Fighting results. I will keep tinkering and once I have those things worked out and the details for 2 fighting forces I will then sit down and try a battle with James.