Here is a thread to discuss perks. Those you like, those you hate, those you have questions about. For reference, I'm lvl 19, play tac w/ stalker bolter about 80%+ of the time, and am usually upper middle of the pack in terms of score which probably means I'm cannon fodder for some of you guys.
Tactical Readout: I really like this perk. It lets you know if you can confidently stick a fight out or when to run. For instance, if an ASM shows up you can quickly identify that he is at 10% health/100% armor and can dispatch him even if he gets up close, or if you can win a stalker bolter duel, etc etc. The big health/armor bars also make enemies very visible. It almost always takes up my first perk slot. Give it a try.
Double shot perk for the stalker bolter: is this worth it? It eats up ammo frighteningly fast and seems to make long range headshots more difficult, the upside being it's much better when used at close range. But if I want a good close range weapon I take the extra weapon perk and grab a melta/stormbolter.
Discuss, and post your own findings.