In OTL, the Commies, who'd kept a *very* low profile during German occupation, ran into the 'Desert Rats' and got bitten on the butt...
FWIW, my father was in the bitter house-to-house fighting in Athens. IIRC, his team of techs found a crate of German training grenades. They'd yell the standard warning for grenade, throw one. The insurgents, with scant combat experience beyond feuding, would scatter. RAF Regiment snipers nailed them. 'Caught & Bowled !!' Sweep would retrieve grenades. Rinse and repeat. When they ran short of grenades, they used dark wine bottles and the cry of 'Molotov'...
POD could be the '8th Army' contingent even thinner on ground, or moved en-masse to Italian campaign...
Oh, and I wouldn't be writing this, as my parents met after the '8th Army' cleaned up the coup attempt...