Legion IV said:
Have to disagree with you there:
Let's not jump to conclusions regarding Space Marine squad sizes. Who knows, maybe there's a plausible in-game explanation as to why there's only three Ultrasmurfs running around. Perhaps they're the sole survivors of a Thunderhawk crash, or their drop pod went off course and they're stranded from the rest of their forces. Perhaps they're on a secret mission that the rest of the chapter isn't supposed to know about. Even if it's never explained it's not that big of a deal for me.
You can still get killed pretty quickly if you don't stay on your toes. My first death in the demo was at the hands of a Nob who killed me in about two or three swings. My second was from a bomb Squig when I had approximately 50% health. This was on Normal difficulty mind you, not Hard. Also, enemies can still wail on you while you're doing execution moves. I've died a few times because I didn't clear surrounding enemies away with an area-of-effect stun before executing my intended victim.
You complain about Space Marines killing hundreds of regular enemies and how it's not "lore accurate." It makes me wonder how familiar you are with 40k's fluff. Just about every Space Marine novel depicts a small squad of Marines killing hundreds (if not thousands) of regular enemies at some point. They often go on to kill a particularly nasty foe like a Warboss or Daemon Prince...and survive. Yes the tabletop and DoW series has them more evenly matched with their enemies, but that's mostly for game balance (otherwise everyone would only play as Space Marines). Also, this is the Ultrasmurfs we're talking about. Like it or not, Games Workshop has made them the poster boys for the Imperium, lauding them as the most capable Space Marine chapter around with regards to overall performance.