[GZG] Heavy weapons dispalyed on figures

Do you field Heavy Weapons (APSWs, LADs, GMS/Ls) along
with small arms (ARs,Pistols) and support wepons
(GMS/Ps and SAWs) in your forces on the table?

I was thinking of doing so for my Indonesian
Commonwealth troops.  I have two sets of 1/35 US
WW2/Korea weapons I can use.  I was debating between
the M2.50 cal. MG or the M1919AG LMG as an APSW. Which do you envision as more
of an APSW with a two man crew?

I am considering using the M1857 mm RR as a GMS/L
weapon. Would thta seem workable with a two or three man crew? Or would it's
historical usage detract from the suspension of disbelief too much?

I also am thinking about using a two man crew and the 2.36 inch R. L.
{"Bazooka"} for a LAD. I may need to modify these a bit to look more
futuristic but I think the scale difference may make it more LAD'ish then if
it was 'in scale.'

I considered the BAR M1918A2 as a APSW or a SAW but I think it may (with a
scope on top) make a better Heavy Sniper Rifle. What do you think?

Finally, If I decide to convert a figure (now *) to
carry the M1919AG LMG or the "LAD" or the BAR/Sniper
Rifle does anyone have any definite ideas about which figures are better
candidates for conversion?

* In the future I thinking converting some figures for
a close assault specialist squad - possibly with the
M3 SMG ("grease gun") or MA1A1 SMG (Thompson) or shotguns from another source.

Gracias,