The Sniper Elite series has been around for quite some time, entertaining fans since 2005 on pretty much every platform known to man. But alongside of the core historical-centric games there has been a lesser known sub-franchise known as Nazi Zombie Army, complete with a demonic Hitler and the same sniper-heavy gameplay of the core franchise.
Rebellion Developments has repackaged the two existing games in a brand new bundle called Zombie Army Trilogy, which also includes a previously unreleased third entry. Confused yet? Don't be, because in essence, they're a collection of horde-mode like encounters with mixed results.