I realized there was something that really bothers me about space marine stats in Deathwatch. I always figured most of the stories about how tough space marines are were exaggerations and propaganda. Certainly they are the finest warriors the Imperium has to offer, but in table top they aren't that much better than an imperial guardsmen. The implants give them better stats, +1 overall (+10 for the RPG). They have the best armor, 8 AV seems about right compared to imperial guard 4 AV flak. I personally probably wouldn't have put Unnatural Strength and Toughness into the game at all, but they've been fairly liberal about giving those to aliens (orks, eldar, genestealers, etc), so I can accept that more easily.
On the other hand, what is with the "astartes" boltgun (and other "just better" wargear)? I know I haven't played TT since 2E, but I doubt the boltgun stats have changed that much. A lasgun was S3 with no armor pen, which translates nicely to 1D10+3, 0 pen. A boltgun was a bit better, S4 with some pen (-1?), which translates nicely in Dark Heresy/Rogue Trader to 1D10+4, pen 4. So why are the "astartes" boltguns so much better? If I recall from the tabletop game, there was only one type of boltgun. Nobody else uses them. The "standard" boltgun is the "astartes" boltgun because that's the only kind there is. Boltguns are the weapons created by the imperium for space marines. They don't build a cheaper kind for normal people, they gave those guys lasguns. Eldar have their shuriken catapults, etc. As it is, the "astartes" boltgun is almost as powerful as the "normal" heavy bolter.
It just doesn't feel right to me. I know most of the fans will disagree, but I would have actually preferred a game closer to Rogue Trader in power level. Space Marines don't have to be demigods to be fun.
I'll still enjoy the game, and it is overall well done. Someday I'd like to see an expansion that let's you play the earlier years of a space marine, starting as a scout and working up through the basic ranks.
) & Astartes bolter differ from standard 'human' bolters that really exist.