Perhaps you are confused, Sega, being new to the whole Company of Heroes thing. You don't have to poke at games that share the same sort of setting, especially when they are really two very different animals.
Here's how you market Company of Heroes 2 — that was it, you just say the name. Put it in a nice font. Slap it on a jay-peg or jiff and put it on the Steam store page.
If you want to get fancy with a trailer called "More Than Tanks", then that's your thing, but you really missed out on not doing a parody of Extreme's "More Than Words" to go along with it.