HD Map pack will replace old maps with HD ones just like the MW4HD pack it will change the water looking and terrain it will work for multiplayer and campaigns...
HD Map pack 4 (5 maps included in this one "Tropical 1 /Jade falcon m1 map, Hesperus factory map, Solaris Abandoned factory arena 1 and 2, and the training...
everything you need to mod MW4 from weapons,maps creation and more...