Tannenberg may well be a hardcore World War 1 FPS that places a particular focus on maintaining a certain level of realism and believability, but that doesn't mean the developers don't know how to spice things up every once in a while.
Tannenberg Wolf Truce event will, for example, introduce roaming packs of vicious wolves to the battlefield, adding another layer of complexity to the already unforgiving gameplay mechanics of this FPS.
The Wolf Truce is a supposedly real event which took place in 1917, and saw German and Russian troops forced to enter into negotiations to try and combine forces in order to deal with the increasingly dangerous "plague of wolves" that beset them during open combat.
True or not, this certainly makes a phenomenal premise for a game, and Tannenberg players will now, when wolves start making rounds, have to make a choice on whether they, too, will join forces with the opposing side. Alternatively, they could also try and make do with another type of combatant in the field.
The Wolf Truce will be taking place from 12th to 22nd of April, and promises an exciting twist to the tried-and-true formula of this game franchise. How well it translates to practical gameplay remains to be seen, of course, but it goes without saying that the potential is there.