Is the bolt carbine secondary added to SM2 the same as the spearhead bolt? Any other shares weapons for scale?

Playing both SM2 and darktode it's cool to get a sense of shared scale between the 2.

My partner asked so would we get it fight tyranids in Darktide?

I'm pretty sure there are none and I imagine the darktide crew would struggle with that scale.

I think the plasma pistol and neo volkite have show up in Darktide as 2 handed weapons that are a huge deal but in SM2 they are just secondary 1 handers