How quickly are you trying to lose the weight BTate? My brother said when he was in the Army for a while, they built up speed and distance by starting with 60/40's. Sounds like you have a solid 12 min mile, in past posts you said 3 mile in 36 etc... Try doing 60/40's on the treadmill, kind of rough on the treadmill so I recommend not using your own, but do a warm up jog, and then run 60 seconds, walk 40 seconds etc... or keep it in 60/40 ratio. I do 90 seconds running, 60 seconds walking, I talk have tried doing variable speeds, 40 seconds 3.0 mph, then 60 seconds 5.0, 40 seconds 3.0, 60 seconds 8.0 etc... I don't know if it is the best way, just a way that has worked for me. Just thought I would throw in an opinion of someone in similar circumstance,
6'2 275 need to get to 240 for the purpose of getting taped. Good luck.
" They only met once, but it changed their lives forever."