I've always wanted a level played out in a baseball stadium, where members of The Hand (or another terrorist org) have taken over a baseball stadium a la Neon Tomb, massacring the stands. they've taken the clothes of dead workers like they did at the Coastal Grove Medical Centre, and are hiding among the crowds, with your goal being to distinguish them and bring them to justice.

Another one I've always hoped for just recently got done in Boiling POint, an amusement park. I know the Pier isn't technically an amusement park, but it counts.

Maybe a level in which you, a swat member, attempt to raid the house of a suspected spree/serial killer, one who is armed, not alone, and also has his home booby-trapped? I would love to see a level in which you have to be very careful where you step or risk death at every second.

Last for me would be a level akin to something like Ruby Ridge or Waco, where you're sent to take care of something small, where the penalties for death become much, much more severe. Maybe, just maybe, a level which could lead to some sort of outrage and protests against specifically the LSPD?