So one part of the Espee's fleet that is still missing from Train Simulator that could be easily added would be their Geep fleet, primary the GP38-2's, the GP40-2's, and the GP60's. (All which currently exist in game with other road names) GP38-2 Southern Pacific acquired their GP38-2's in 1980. These were numbered 4800 to 4844. An additional 28 were leased from Helm Leasing and numbered 151 to 170, until the then new AC4400s were delivered, in which they were numbered between 4846 to 4873, but not using all numbers (Some weren't even in SP paint). 6 GP38-2's were equipped with Snow fighting equipment for Donner Pass, these were 4809,4817,4839,4840,4841 and 4843. these units would make a great DLC for Donner Pass with a SP Flanger added in as well. All 6 units still serve the Union Pacific in the same role. GP40-2 Southern Pacific ordered 124 GP40-2s, with 68 in SP lettering, and the other 56 in Cotton Belt Lettering numbered 7608-7677, 7940-7959, and 7240-7273. These units were delivered in 5 orders across 6 years. SP also rostered a few other variations of GP40's, such as standard GP40s for the SSW, 3 GP40P's for the Peninsula Commute, 4 GP40X's and a handful of GP40M's from Morrison-Knudsen. A pack of these units in Southern Pacific, Cotton Belt, and Speed Lettering with SP specific details would make a decent standalone pack. GP60 Southern Pacific ended up with 195 GP60s on their roster with 100 for the SP and 95 for Cotton Belt, numbered 9600 to 9794. Oddly enough 3 GP60s were also delivered in Rio Grande paint in 1990 as replacements for wrecked units. The SP and SSW units could be a good DLC pack for the Granger Heartland Route paired with some SP intermodal equipment, as the Southern Pacific had trackage rights on the UP's Maryville Sub between Kansas City and Topeka. The intermodal equipment that could be included would be 48' Well Cars based on either the 5-unit MAXI III car or the single unit Husky Stack Car, 48' SP Container. And Southern Pacific's 45' Golden Pig Service Trailers.