Tripwire Interactive has released a new trailer for Red Orchestra 2: Heroes of Stalingrad and they manage to manufacture smiles and chuckles out of the rather grim subject matter. Entitled Remembering, the trailer features a grizzled veteran being asked about the brutal battle by his grandson. Sounds funny, eh? Just watch. RO2 was recently delayed, but you’ll be able to play it soon enough when it launches on September 13. Also, a little birdie told us we may have a full gameplay trailer sometime next week, so stay tuned.