thats pretty close, do you use tactics alot? I practically play with my finger on the tab button and constantly switch it as I walk around (when moving or reloading, I use coward, and when shooting I switch to aggressive).
It doesn't cost and turns to switch tactics so it's awesome. And when you are on coward, arachnatrons don't hit that hard!
and when you know enemies are just outside of your sight range, press . a few times, it passes turns without you moving, and makes them come to you. If you walk into them then they might shoot at you before you can respond (hellrunner helps somewhat for this though), but if you wait for them to walk to you, you'll certainly shoot first!