User blog comment:PresidentEden78/Medal of Honor Warfighter Trailer unveils Battlefield 4, but is it too soon?/@comment-4820371-20120718005817/@comment-1476628-20120718032627

No, it would be the frostbite 1 from BFBC1 with major to minor improvements

BF2142 used refractor (which is older then the series at hand.)

BF2MC used Renderware

AoA@ I came to this wiki when MW2 just started the OMA/Danger close/noobtube combo.