I dunno if it's worth HTC's time to incorporate such without starting to charge for the program itself. Sure, AW and WB had such, but it stands to reason that those having fun with offline missions may drag their feet signing up for online play. But if the game only gives a player an idea of the graphics and allows them to familiarize themselves with the aircraft and button setup (and allows for free head to head play), then sooner or later that potential customer would want to take the plunge and join the community for online play.
*ShruG* My theory, anyhow. It's not like I'm an expert about making a buck off of an online sim (quite the opposite)

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