I belive that a good combination of weapons to get the 5000 points on hardcore mode badge is dual lever shotguns ( the guns you see in the opening cinematic but 2 of them) and the laser rifle.I also think 2 good maps to do it on would be Dungeon and House.On Dungeon i personally go in a counterclockwise rotation on picking up the ammo crates. I start from the bottom and then preceed to go to the middle then top then back down to ground when the crate has respawned.If the ground crate has not respawned i suggest sitting on platform at the 9 o' clock position on the map.The platform at the 9 o' clock position on Dungeon is also a good place to rest to regain health.On House i follow a bottom to top route on the ammo crates.The small platform at the top of the house is a good place to rest and regain hp.I hope this will help anyone out who is having difficulties getting the badge.