I mean to say no drop items off fallen monsters or characters. I believe a DLC game should be more focused on moments of nonstop combat... and moving on quickly to the story...or more combat, or comedy relief..like something quirky.
For the gameplay experience of attrition and greater immersion I'd like for there to be no scavenging, so no footlockers, drop boxes, containers etc at all.. just a long dusty broken road and your ever diminishing supplies you originally set out with. Plus shooting lots of stuff without scavenging would be refreshing.
No energy weapons due to... say a magnetic storm zone due to residual pole shifting activity. So no cheaty Alien Blaster, or anything too bright...just bullets, and lots of 'em.
If you wander of the broken path, your GPS doesnt work... and the map constantly re sets so its possible you can wander off forever lost...but eventually die.
Speech skill should be used to keep your team together, if say a member wants to turn back, take over, or loses it..etc. Dialogue should be complex and tricky too to add dimension to the gameplay experience. If you fail a dialogue attempt then their should be definite consequences (death, diminished combat capacity, member going berserk).
I hope this answers your question.