Hopefully they'll have not just the Kill Hitler but other DLC missions available piecemeal eventually. I can tell you that in the menu there's a sideways scroll selector for DLC missions even though there's currently only one. Honestly, I'd like to see some longer ones too.

The Kill Hitler one is a bit underwhelming IMO. It's very short and you're stuck in one snipe position at the end where most of the shooting is done. It's a nice looking map, but they could have made it a MUCH better mission. It would have been cool if you had to snipe and stealth your way through country farms, and the woods, then sneak onto a train to get to the train station where the DLC starts out.

All the better if you had to sneak onto the train within a given time like with the Hitler assassination. The foot patrols on roads near the farms would require you to move undetected through barns and farm houses and they and the ones in the woods would have dogs. If alerted they'd send them after you.

I'm playing the first missions... the game is well done about the graphics. The gameplay is fun, but doesn't make me cry for joy (i still don't try cooperative gameplay, which i think it was superlative). I hope it became more inspired later and also that they doesn't waste this opportunity to produce missions packs for their fans