Why do the 5 Spartans on a halo wallpaper for halo wars have mark 6 helmets when its meant to be mark 5 isn't it 20 years before halo combat evolved and wasnt the mark 6 helment introduced in Halo 2?

Actually Although It May Look Like The Mark VI, It's Still The Mark V Simply A More Improved Version Because If You Remember Halo CE Came Out On The Original Xbox And The Graphics Weren't As Good So If They Were To Bring Out A Re-release Of Halo CE On The 360 The Mark V Would Look Like The Ones Halo Wars

Hope That Explains =]