Poland OOB02
I was quite surprised to read in Polish Nowa Technika Wojskowa 6/21, that
Mi-2URP (unit 117) and
URP-G (unit 740), with Malutka missiles, still serve in Polish Army (of course, rather for combat training purpose - however, they are currently the only Polish helicopters with anti-tank - well, maybe "anti-AFV" missiles rather... Polish Mi-24 are still lacking ATGMs). Predictably, they will serve until 2025 at least... Part have been modified to use night vision goggles, but I don't know if it enhances vision.
On the other hand, other armed variants of Mi-2: URN/URNG (#115/741) with rockets and US with machine guns (#742) most probably ceased to be used well before 2015 - I would say 2005 at best.
967 Mi-2 Kania - PZL Kania was a Polish variant of Mi-2 with western engines
https://en.wikipedia.org/wiki/PZL_Kania , but unfortunately only 19 were made and were not used by Polish Army.
963 SW-3W Huzar - unfortunately, pure fiction. There were only technology demonstrators with South African missiles (1993), then HOT-3 (1999) and Spike (2016), but there are no plans to buy any.