Looks like M&B devs played to much of Total War games. I like those games too, but theres enough shooters out there. And this looks like you play vs the cpu with bots. Why would you want to play line infantry in a 3rd person shooter.
If they really want to make a game like this they need something like the Battlefield 3 engine add cannons and make the map deformable, meaning grenade holes and whatnot.
Form a historic point of view artillery was one of the most important factors in those battles.
DLC as new content - fine with me. But not that time period and with guns.
Earlier time like romans & mongols (around year 500) would be cool. But not guns.