It appears that PlayStation's North America team has lost two additional members of its executive staff. According to a report, VP of marketing Scott Steinberg and senior VP of publisher relations Rob Dyer have left Sony Computer Entertainment America.

Earlier this year, senior marketing and PlayStation Network VP Peter Dille left SCEA to join mobile advertising network Tapjoy.

Read more: No replacements named for Dyer and Steinberg »

Dead Nation has enjoyed sustained popularity, no doubt in part because it was given as a PlayStation Network Welcome Back reward. For those of you itching for more zombies to slay, the Road of Devastation downloadable content pack is incoming, and now developer Housemarque has announced a release date and price.

You can grab the pack on September 27, for $3.99.

Read more: New environmental weapons and enemies »