So iv been sitting on this for quiet some time but everything iv tried wont open them im not sure if u guys knew but there was a port i guess of halo...
a .mdl file is a model used for Cs 1.6 (GoldSrc) and its really a zollection of a couple files just compressed and made so that it can only be opened...
Hes not the banned guy "Zer0x", if sebas was him he wouldn't make an unban request, but would have evaded the ban again, since "Zer0x" is a known ban...