I don't like the fact that the space marine codex allows its regular troop choice only bolters. Is it okay if I switch codexes and use a "counts as" army. I wanted to do imperial fists, but if all imperial fists are skilled with a blade fluff wise it makes no sense that most of my army is only armed with bolters for close combat. I am also not very familiar with the codexes other options. What should I do. I was thinking of just using grey hunters as my classical imperial fist as they seem a little more "stern and closecombatish"