AFVs in the DMZ

Some changes for Vehicles and AP values for Chain if Command NAM

I'd like to start off by saying that I am no Armour expert and any of the figures I have come up with may be out so I am open to any suggestions. 

That being said in order to reduce the amount of dice to a manageable figure due to higher armour and armour penetration and to see vehicles on the table that featured during the Vietnam conflict adjustments to Lardies current calculator can be made.

Firstly an explanation of the areas we are going to discuss of Lardies calculator method for Armoured Fighting Vehicles (AFVs) and Gun Teams.

Full details listed in this post for those that have not seen it
http://toofatlardies.co.uk/forum/viewtopic.php?f=35&t=1058

"Armour Piercing rating is based on military data and is based on mm of penetration at 250 to 500 yards. As follows

1-10mm = 1
11-20mm = 2
21-30mm = 3 etc

We use stats for the best and most widely available ammunition at any time. If it is as rare as hens' teeth we ignore it. That can be introduced in a specific scenario.

Cannons also have their AP factor increased to account for a greater volume of fire.

Armour is rated according to thickness, as follows:
0 = none
1-8mm = 1
9-12mm = 2
13-20 = 3
21-30 = 4
31-50 = 5
51-65 = 6
66-80 = 7
81-100 = 8
100-121 = 9
121-140 = 10
141-150 = 11
151-170 = 12
171-185 = 13
186-200 = 14
201 - 250 = 15
251 plus = 16

We use the thickest frontal armour excluding the mantle. However, there are variations. Armour sloped 40 to 50 degrees adds +1 to the armour rating. 51 degrees and more adds +2.

AFV's are rated on six things: Armour, AP, HE (or more to the point "anti-infantry") Speed, Secondary armament and "advantages and disadvantages"

CHANGES FOR CHAIN OF COMMAND NAM

To keep things simple we base the calculations on Lardies calculator with the following change:
Armour Piercing rating of 10mm is changed to 1 inch (Lardies figures are just multiplied by 2.54). 
This produces the following tables calculated in mm.

DICE    AP(mm)            ARMOUR(mm)
1           2.54 - 25.4         2.57 - 20.32
2           50.8                   30.48
3           76.2                   50.8
4           101.6                 76.2
5           127                    127
6           152.4                 165.1
7           177.8                 203.2
8           203.2                 254
9           228.6                 304.8
10         254                    355.6
11         279.4                 381
12         304.8                 431.8
13         330.2                 469.9
14         355.6                 508
15         381                    635
16         406.4                 762

e.g. A.P of 400mm would be 16 dice.

The result is a table which allows dice rolls the equivalent of the Main Rule book and allows vehicles and gun teams to fall within a reasonable Support Listing.

Any comments welcome.