User blog comment:Deathmanstratos/Some Call of Duty: Advanced Warfare singleplayer background information revealed/@comment-6343006-20140505004610/@comment-1854594-20140505052833

They could add characterisation. The soldiers already speak, what if they not only include the visual customization but also allow picking from various voices like in Fall of Cybertron and generally make the characters more vocal instead of just spouting out generic stuff.

Of course this could also get really annoying.