I believe the only Croatian force on the Eastern Front was the 369th Croatian Infantry Regiment, which was under German command. They numbered about 4,500 during their campaign and were disbanded after their defeat in Stalingrad.
They also wore German uniforms and used German equipment except with a Croatian badge:
So modding them in isn't even a challenge -- it's a literal helmet texture change. The sound acting however, is a different matter.
They also went through some pretty hairy stuff and were considered pretty damn brave, earning the respect of German commanders. As a single player campaign they'd be perfect. But for such a minor nation it's not even commercially viable.
"Staff Sergeant Dragutin PODOBNIK, recieved the Iron Cross 2nd Class on September 24, 1942, for actions in the Ukraine, during the course of the Summer (specifically the "Proljet Kultura" Kolhoz battle, an all-night, hand-to-hand combat action). On September 27, 1942, the 369th entered Stalingrad.
Staff Sergeant PODOBNIK was further decorated on October 16, 1942 with the Iron Cross 1st Class by General Sanne (at Stalingrad). The award was recieved for an action on September 30, 1942, where Podobnik and 18 of his men infiltrated a fortified Soviet position in the “Red October” factory, destroyed the defenders(even though the Russians outnumbered them), and handed over the occupied building to the 54th German Regiment (that had been unsuccessfully attacking this position for several hours). Podobnik and his men also captured 3 enemy artillery pieces, 2 mortars, 1 “Maksim” machine-gun, and a large number of rifles, pistols, grenades and automatic weapons. All of this with only 3 lightly wounded men. Sergeant Podobnik would, unfortunately, not return from Stalingrad (his actual fate is unknown)"
Staff Sergeant Dragutin Podobnik is the badass second from the left with the mp40 and the grenades:
The 369th were attached to the 100th Jaeger Division and fought its way through Ukraine up to Stalingrad, got trapped inside fighting pretty bravely taking key locations, defending key spots until the entire city capitulated. Those that survived were put on a forced march without warm clothes to Moscow into POW camps. They were then abused, starved, beaten w/e and something like 5% survived that. Anyone who did live was forced into basically a suicide squad for Tito and then whoever survived that was executed for not being trustful! Not too fantastic, lol.
Bit cheesy and Patriotic haha:
YouTube - Hrvatski dobrovoljci u njemačkoj vojsci - Drugi svjetski rat
http://forum.axishistory.com/viewtopic.php?f=51&t=138831&start=45
http://en.wikipedia.org/wiki/369th_Reinforced_Infantry_Regiment
Germany's allies around Stalingrad get a lot of stick for buckling and causing the 6th army to be surrounded, but really, you can't blame them. They had a total lack of anti armour ability, despite desperately trying to get reinforcements, and informing commanders that a push was pretty imminent, no one bothered. German high command was just retarded, putting your least equipped troops on the flank, no matter how tenaciously they defend will only result in your *** getting kicked haha.
