[SG] Heavy IAVR

1) Oerjan has already convinced me IAVRs are too weak (vs. how they perform in
the real world). In DS2 they would probably be entitled to 2 or 3 chits, I
believe we concluded. (Or something like that, I may misremember).

2) A normal IAVR might make the case for D12 x 2* impact vs point targets, D8
vs. dispersed. If it is an AT warhead, not the multipurpose one the game seems
to suggest.

3) I have old house Kurita 25mm (great figs) and they have Recoilless Rifles
(Medium Antiarmour Weapons). I give them 2d8 (or, sinc I have some, D16
Impact) and a D10 FP and use 12" heavy weapons range bands (but they don't
multiply by target class).

Tomb.