What I have found so far is that tracking counteracts evasion, and then accuracy and remaining evasion determines the probability of hitting. I haven't found the actual formula, though.

What I'm really trying to figure out is what weapons I should use. In my current game, I have tier 2 lasers and tier 1 missiles and kinetic. Going by the raw DPS listed, it looks like the base kinetic weapon is better than the tier 2 lasers, at longer range, which seems a bit strange. However, I expect the DPS calculation doesn't take any evasion into account, but without the actual formula I can't really determine which to use.