I've already suggested loco DLC packs for BNSF and UP. Here are my suggestions for some new Norfolk Southern locomotives for the Horseshoe Curve Route. -NS ET44AC: The latest GE Evolution Series locos; NS rosters 80 of these engines. -NS SD70ACC: Part of NS's DC-AC Rebuild Program, these are former NS SD70 Spartan Cab units rebuilt with SD70ACe cabs, new electronic systems from Mitsubishi, upgraded controls and alternator, and AC traction motors. The SD70ACC pack should include the yellow and gray liveried engines. -NS AC44C6M: Also part of NS's DC-AC Program, these units are former NS C40-9 and C44-9W locos with AC Traction and new cabs and controls. This pack should also include the blue and gray "Sonic Bonnet" units that are reminiscent of Sonic The Hedgehog. -NS Admiral Cab SD40-2 Rebuilds: SD40-2s rebuilt with new cabs designed by a former US Navy Admiral (hence the name). The cab windows are slanted like a Navy ship. -NS SD40E: Rebuilt SD50s; basically SD40-2s; these would be perfect for helper services on HSC. -NS SD60E: Rebuilt SD60s with upgraded electronics and controls, plus a new Crescent Cab design. The NS loco pack should include the Veterans (#6920), First Responders (#911), and GORail (#6963) liveries. Two of these are used to haul the NS OCS Train since NS sold their F9s. -NS SD70ACU: Rebuild former UP SD90-43MACs with upgraded electronics similar to the SD70ACCs. -NS SD80MAC: No longer in use, these big EMDs are former Conrail engines. Some were sold to CSX after the merger, and eventually, NS rostered all of them until they were retired. -NS GP60 and GP59: These would be perfect yard/local locomotives for HSC. GP59s have 3000HP with a 12-Cylinder 710; GP60s have 3800HP with a 16-Cylinder 710. Some of the GP59s have been rebuilt as GP59Es/ECOs. -NS SD33ECO: Rebuilt SD40-2s with Admiral Cabs and flared radiators; Tier 3 compliant with 12-Cylinder 710 Prime Movers -NS GP33ECO: 4-Axle versions of the SD33ECO; rebuilt GP50s -NS SD70ACe Heritage Units and standard black SD70ACes/SD70IACs: These would be repainted BNSF or UP SD70ACes with details added for accuracy. The IACs have Individual Axle Control with one inverter per axle instead of one per truck like on older locos. -NS SD45-2: These have 16-Cylinder 645 Prime Movers (they're basically SD40-2s with SD45-2 bodies); This pack should include the Erie Lackawanna Heritage unit