Allow an alien veteran to correct a few of your mistakes.
-While it's true that not killing any small aliens can make it easier on you when evolving, it's not really that important since all aliens respawn in the Hive (well, except the queens, of course), and the Hive is an easy area for an alien of any level. Constant food, constant evo, and killing reapers even gives health.
-Ship Graveyard is only a good place if you're not so confident in your ability to survive in the Hive. I personally ignore it unless I'm considering it as a nest location (It's useful, depending on how your map got laid out).
-Not true. As soon as I get motion detection, half of my time is spent watching the radar. As soon as I see a blip, I change my attention to the main screen and close in for the kill, but the radar is used right up until I start slashing. Yes, even at level one.
-This is very true. A general rule: Don't pick up the sticks in the hermit's house until you're at full evolution. Trust me, you'll thank me later.
-I've never used Lethal Bite even once. I never used it on any boss ever. My claws always did the job much better.
-I don't think anyone doubts the effeciency of the claws, so let's skip to:
-"Flamethrower dudes" can be easily eliminated with a bit of acid, if you get my drift. The only concern is food, and if you're running low on food you shouldn't be in the VC area to start with.
-I only go to the robot area if I need to build a force field generator. Otherwise, I stay away.
-A new player definately has to worry about those vines and their poison shots. An experience player, however, has nothing to worry about, since they are easily dodged. Of course, if anyone's reading this, they're not an experienced player, so...
-I've never had a nest in hive. It's simply not a good idea. While it will supply near-constant food for you and your brood, you can't just sit your character in the stasis field and take a quick break without having a f*** of a lot of turrets. People tend not to carry around a half-dozen turrets at all times. The gorge is a much better place. Or the ship graveyard, depending on how your map gets set up.
-So what if it's the easiest ending? Who wants the game to end quickly anyway? The point is to survive as long as possible, of course.
-Yes. Definately. Stasis field = YOUR BEST FRIEND IN THE WHOLE WORLD. Love the stasis field. The stasis field is mother, the stasis field is father...
-Repair units are too valuable to waste as weapons. I've only ever used them as a weapon twice, and both times were accidents. Repairing turrets and your hoverbike takes priority. Besides, a bit of Feral Rage and those robots are no trouble at all.
As to your last comment, I have no idea what you're talking about. If you mean that "consume" or whatever it is, then that's not an attack. You use it in your inventory when you have a small blue alien corpse and you'll regain health and a lot more food than usual.