WipEout HD

This is one of the hardest trophies in the game, mainly because of the Elite A.I. They can turn corners perfectly, almost like auto pilot. You have to get a gold medal in all 87 events (excluding the Fury DLC) on Elite difficulty. The most brutal tracks are SOL 2 and Chenghou Project, especially on Phantom Speed. During the 8 stage tournaments you just want to focus on keeping your ship alive, if you blow up then that's probably the end of it for you and your chance of winning the tournament. The main thing is though, practice. You can't get enough of it, also pick Feisar as I found it the best out of all the ships. If you like to barrel roll a lot then make sure you absorb nearly every pick up with , keep quake, autopilot and boost though as they are useful, don't absorb them unless your on very low health. See the tips in the Road Map for my controller scheme. Here's a short walkthrough of the tracks on Phantom Speed:

Vineta K:

Easy enough, not much to say about it apart from the fact there's not many barrel roll spots. You just want to perfect the racing line and hit as many speed pads as you can. This is one of the easier tracks and I'm sure you will have no trouble with it.

Anulpha Pass:

This is an easy track, especially on Phantom. There are very few corners on the track as it is. Firstly you will want to try and get all three speed pads hit on the first corner, use airbrakes and Side Shift as you're going up it. Then go through the 3 speed pads on the straight, now you have the big slope which you will want to pull the nose of the ship up when you go over it so you can get more air for a barrel roll. For the next couple of corners just use a mix between airbrakes, side shift and steering. Go onto the overpass and get all the speed pads, then Side Shift off and you're at the finish line.

Moa Therma:

I don't really know what to say about this but just drive normally, use Side Shift, airbrake etc around the corners and hit every speed pad. There's only one barrel roll opportunity and that's at the very end by going over the speed pad and slightly gutting the corner, you can barrel roll. It's dangerous though as you could fly off the edge.

Chenghou Project:

A horrible track that takes ages to master. Firstly you want to hit the pickup pad instead of the boost as the boost usually just sends you into the wall, hopefully you'll get something good in it to. For the very sharp left you need to use airbrakes and steering to get through it, else you will smack the wall. For the broken parts of the track, do a barrel roll and try to miss the 2nd broken track part as it's quicker, for the downhill slope keep the ships nose down or you get too much air and the ship goes to slow. The next few corners are self explanatory. Once you reach the large jump, you can barrel roll down or just go down. I didn't barrel roll as barrel rolling on this track is dangerous. For the S turns, just drive straight through them. Get the two speed pads as you approach then end.

Metropia:

Easy enough track, there's not many places to barrel roll but if you have boost you can boost up the hill at the first bit and get a nice barrel roll. Be careful with this track as you it's got lots if sharp corners, so remember to use airbrakes and side shift when going around them to avoid hitting the wall. For the gravity tracks, make sure to go through all the speed pads.

Sebenco Climb:

A brutal tight track where many A.Is will get eliminated (4 got eliminated on my game). You will want to use side shift and airbrakes around the first sharp left, then barrel roll on the hill. Use side shift and airbrakes over the next few corners until you reach the large hill. You can barrel roll down it if you pull the ships nose up but only do it if you want to. Remember to get all the speed pads. Just before the S turns is another opportunity to barrel roll, if you go over the speed pad. Go straight through the S turns then use a combination of airbrakes and steering, then the lap is over.

Ubermall:

Easy enough track with lots of barrel roll opportunities and boost areas. The first part of the track is easy, for the fork in the road, take the left lane as it's easier to hit the speed pad. Barrel roll on the hill and fly over the corner, now try to avoid smacking the other corner. Coming up now is a very annoying hairpin, you have to turn early and exit early or you will hit the wall and lose speed and health. At the very end, if you have boost you can use it to boost over the hill and barrel roll.

SOL 2:

I hate this track and is worst track in the game in my opinion. The A.I bump you off the edge and shoot you off the edge all the time which is very annoying. The first few corners are easy, when you reach the very long right hand turn make sure to use airbrakes etc and then get the speed pad as you exit, for the next corner keep a constant steering pattern else you will hit the wall. There's a barrel roll opportunity at the end of the corner if you lift the ships nose up. For these next few corners just drive normally and you should be fine. The final corner can be hard to get right, make sure you turn early and side shift to, that way you will avoid hitting the wall.

For more help, check out Dark_Phantom_89's awesome tips and tricks guide:

Wipeout HD - Tips and Tricks

Also, here is the Elite Campaign discussion thread:

Elite Campaign Discussion thread