Hmm. Haven't seen anything like that rolling around Detriot lately... Saw lots of trucks from the old program, based off the last gen Silverado. It was termed "Enhanced Mobility Package". You'll find some manuals if you do a web search, but not much else.
On the EMP trucks, the wheels were two piece Hutchinson's with a runflat insert that also was a beadlock. Heavy as heck, but solid.
I think some of the trucks had CTIS too, but I don't think that went far. They had cool HD bumpers front and rear, about 4" of lift, 33's, hydraulic jounce bumpers, and some extra electronics, but were otherwise stock crew cab shortbox duramax trucks.
I think Canada bought some slightly more civilian versions to replace whatever they had for cucv's... No lift, just bumpers and paint and some electronics. Some may have gone to border patrol too, for use in the desert states.
That's about all I know...
C