Baby steps. If he can't even do well in ranged he's not going to pick up melee any easier.

Baby steps eh?fair enough.

There is a very high skill gap, its also highly teambased

Eh, well if you have any other games that have a combination of shooter and melee gameplay, take a bit of time in the garrison and think about how you want to set up your keybindings. I can't play at all with the default keybindings so I went back and had a look at the shooter/melee commands of "Space Marine", those seemed to work well for me so changed them accordingly.

The PVE gameplay is very different from the PVP, so playing one will hardly help you "git gud" in the other... I'd recommend avoiding the fortress maps in the beginning. What does help is using cover, just move up against walls, or if it's low cover, crouch up against it. Class loadouts: the standard loadouts are a lot better than your naked custom loadouts in the beginning.

As for things just seeming too fast, maybe you were really unlucky and got the wrong end of the lagfest, that some of us are currently experiencing. Rubber banding and other lag-related stuff is happening quite a bit today.

Actually Tacticals are in a rough position ATM.

One of your best and usually under utilized weapon is actually that smart pistol at close range. I have found it works well against Eldar especially.
Do not hesitate to man the guns on the vehicles. A fully loaded out Predator is a nasty piece of equipment.
Try saving up for a Meltagun, I have found endless enjoyment is destroying every enemy vehicle I can find with it.

Avoid the Plasma Cannon, it is junk ATM versus the vehicles. I feel it needs either increased penetration and damage or a combination of the two versus vehicles. Or the ability to damage the crew of the vehicle at full charge.

Guard your Devastators, they will really appreciate the help. Also move to a massive squad, so you get more exp from them as well.

This game is really tough to play lone wolf. You really need to stick with your squad.

I saw. I teamkilled him

Edit: rolled over with Rhino.

Edit 2: twice.

Plasma cannon is supposed to be used against groups of enemies or to make enemies move from cover.And its also pretty crap at both at the moment due to a lot of crying.

Imposibvle! Screen or it didnt happen1!

1. lots of practice.
2. level up bit and get some better loadouts.
3. preferably join guild play with a team and use team speak.