I have been looking into the same thing having started playing Hind and Seek lately. I had an old pack ('80s or '90s latest) of Heroics and Ros M21 (modern irregular figures) rebel forces. The figures look to be wearing BDU caps (see
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In my set there are five identical strips of 10 figures. The weapons appear more generic and don't match anything exactly but look close enough. I describe them as;
3 figures advancing with assault rifles (could be AKs)
3 figures advancing which look to have SMGs
1 kneeling figure with an RPG shouldered
1 kneeling figure with an assault rifle about to lose his front teeth (holding the weapon up in his face)
1 figure with his AR (looks closest to an AK) held one handed while he orders/leads (pointing) with his other
1 figure toting a drum fed LMG (RPD or RPK)
Of course there are no support weapons available. I do not know if the figures have been updated since I purchased them. I recently bought some WWII German infantry and the castings are all new. I will be painting the M21s as DRA with Humbrol enamel #187 overall which looks pretty close for the uniform colour.
I also looked at GHQ modern micro armour third world warriors TW-8 and TW-9 heavy weapons. Only some of the figures wear BDU caps so what to do with the other half of the figures? If doing imaginations or other conflicts fine but I assume castings with berets are not reproduced with BDU caps so many figures (leaders, HMG and mortar teams) would be missing. If you go that route I would be willing to buy the beret guys.
What are you using for soviet and mujahideen forces? I have no figures for the mujahideen yet but a few packs of soviet and airborne forces of the same vintage as the M21. The airborne packs are great. I am pretty sure I have two packs of M07 Soviet Airborne troops. figure loadout is;
3 strips of infantry
1 leader one handing his gun (AK) and pointing with the other
1 radio operator one handing his weapon (AK) and talking on the radio with the other
3 troopers with AKs
1 trooper with an RPK or RPK-74 (banana clip magazine)
1 trooper walking with an RPG-26 (or RPO)
1 strip of prone figures with 3 sets of AT4 or AT5 (gunner and loader)
2 strips of heavy weapons
1 kneeling sniper (very cool figure)
1 standing figure firing a anti aircraft missile (very short tube so which one I don't know)
1 mortar (looks big for an 82 mm)
2 standing mortar crew one with round in hand the other not, each has a slung AK on their backs (cool)
1 figure with a flame thrower (or another mortar round I really can't tell but can't find a short barreled post war Soviet flame thrower)
2 strips heavy weapons
1 kneeling figure with wheeled carriage HMG (don't know model)
1 kneeling figure (loader for above)
1 kneeling figure with binoculars (spotter for anything)
1 kneeling figure with tripod mount SPG-9
2 kneeling figures (loaders or spotters for above, no binoculars)
Hope this helps.