From the same guys that brought other developer interviews before. You can view this interview by following this link (I don't know how to copy the vid from their website here):
http://www.gamekings.tv/index/videos/om-de-week-donderdagkoninginnedag-killzone-2-dlc/
-They're at Guerilla Games headquartres
-It's Dutch Queen's day
-Interview with Erik Boltjes, Senior Online Game Designer
-They've been busy non-stop and haven't taken a break since release.
-Biggest problems online? Clans, tournaments, online bots
-The two new maps have been made since release and have not been held back to cash in
-They tried to make a different level. Not more of the same. There are some new gameplay features
-They listened to feedback (e.g. from forums) to decide what kind of map to make
-Important factors in a good online map? Flow, blance
*goes to show new maps
Vekta Cruiser: Claustrophobic feeling. Close combat fights. Fighting one on one.
-The singleplayer layout was a good basis, but it was missing circular flow. So the gameplay continues, no dead ends. In this level it was challenging to get that done. They added many corridors, rooms to make the gameplay flow.
-People were asking for close combat and they delivered. More meleeing then in all the other maps
-His favorite class is tactician with boost. He's a teamplayer. Tries to get a spawn point near mission objectives.
Wasteland Bullet: Two trains, you need to dodge moving objects. You'll lose your head. Focused on enviroument. It's a linear level.
-Techniqual it's difficult to get this level done. Graphical it's heavy. Heavy winds from singleplayer are less, to make it balanced for both factions.
-They're trying to give variety with the new maps. New concepts for future DLC. New trophies. No new badges
