+1 to this. I carry the EXACT same stuff. Even if you're not familiar with all these items and how to use them, find a veteran, we're all qualified with this stuff and the training only takes a few hours. Can save a life.
Caveat for tourniquets though, doesn't matter how bad the guy is, if it's not your family or friend who is hit, get the guy or gals verbal consent to apply it. EMT's have gone to jail over that shit.