Secret Playtest in Poland?

Incoming Report:

In a castle in the town of Nieplomice, east of Krakow, deep in the castle keep they did some play testing for cool new Band of Brothers scenarios.


In the castle grounds, Soldiers stood guard for this secret testing! [re-enactors] put on displays for the public.

Intel from our Agent Brendan Clark who risked life and limb :
“I snapped this photo.”

photo
Panzer Grenadier meets Ghost Panzer!

Also heard…..”I shall try to get to you audio reports from a modern tactical game I’ve discovered while in Poland. The game missions will be in the jungles of Vietnam. No more clues!”

What game could this be?