when you start stay in a group of 4 or more mostly
Large groups is good, yes.
Just get too the alien base as fast as possible in your group
This is often a recipe for suicide
Shoot alien on sight
I think this is too obvious to be mentioned
Keep it coming over and over as fast as posibble
No. less feeding, please.
One guy change into painsaw to stop your team from feeding in the front-lines
If you see your team mate (Rifle) being rushed by a goon. Painsaw him to keep him from feeding.
This tactic may work in a scrim, but if you're going to do this, you need to do it where can heal and actually use your painsaw to help in battle. DOING THIS IN A PUBLIC MATCH COULD GET YOU BANNED.
Try running towered maras and jumping side too side(Lasgun only)
In hs2, this can work, minus the jumping. And not just with the lasgun, or marauders for that matter. Jumping is more for facing dragoons IMO.
Use human towers mostly (practice them)
Eh, they can work, but only for the coordinated, and even then its usefulness is questionable.
Run towered Goons and jump over them and take down less scary enemy
You can't jump over goons, nor is ignoring one of your largest threats on the battlefield a good idea. Your advocating feeding here.
Again I don't mean to be hostile, but if you're going to copy paste a guide, do it intelligently, please. Actually, on another note: Are you for real or are you a troll?
EDIT: successful troll is successful. I didn't realize that it wasn't firstinaction. :/