I'd love to have seen what GameSpot would recommend in terms of multiplayer strategy, but I doubt that three months later it's ever going to be posted. :/
Your wish is granted. Our Twisted Metal Walkthrough provides tips for the 18 chapter storyline, tactics for online play, and means for gaining every unlockable.
Endurance Battle - Black Rock Stadium
Unlocks: Crimson Fury
Black Rock is the same area as the Killosseum, unless this time it has been improved with a lava pit at the bottom. While this new addition can hurt, you can also use it to travel to the other side of the map, escape enemies, or deal damage to your foes.
Sweet Tooth, Meat Wagon, and Outlaw are a good combination of vehicles to quickly deal with the minimum eight enemies. Each has a fair amount of life and a weapon that will follow moving targets.
Mean Juggernauts DM - Ghost Town Gulch
This match is among the top three hardest events in the game. You'll be up against two Juggernauts and many enemies, plus the total lack of a garage or many Health Packs. The best strategy is an all out quick offense.
As mentioned in other Juggernaut battles, Talon and its special are a great means of taking out a Juggernaut in one go. The rest of the fight in mainly surviving. Keep track of both Health packs: one near the gas station and the other on the short rock bridge.
What also helps immensely is grabbing the Mega Guns tucked inside one of the rocky caves. This side arm is nearly as powerful as Talon's special, making it another great weapon to take down a Juggernaut or clear out the enemy.
The main thing to practice is Talon's controls and weapons. You'll want to know how to quickly avoid and escape attacks and there is nothing worse than wasting a special charge on your magnet when you don't want to.
Endurance Battle - LA Skyline
Unlocks: Rocket Sidearm
Finally, a brand new map. You'll by driving over many sky scrappers and will need a fast vehicle to make some of the tricky jumps. Making use of the new Crimson fury is recommended.
There is of course no Health Semi Truck running around these rooftops, so you'll need to rely on the few med packs around the center location. On the plus side there is a garage around to switch vehicles (who puts such a ting on top a building!?).
As an Endurance Battle you will just need to kill eight enemies by any means. While taking them out with weapons is the most practical means, you can also consider straight up ramming them off the buildings.
Fight for Your Life - Metro Square
You will need to take out 14 enemies that will all target you. This match is all about endurance, so the top pick for this fight is Darkside. Both its standard and alternate fire weapons deal huge damage and the amount of life will keep you alive for a long time.
Stick to close range weapons as well, such as shotguns (both main weapons and as a side arm) and power missiles. There is a garage around the area, so you can pack a second Darkside or even bring in a Talon.
The helicopter can of course fly out of enemy range, and its magnet special can be used to pick up enemies and drag them into the water. This is a true endurance fight, so expect to be switching in vehicles at least once during this grueling skirmish.
Check Point Race - Diesel City
This race is down right evil. You'll be up against unknown trial and error rather than pure racing skill. This is another time where it's good to restart the match each time you miss a check point until you memorize the entire course. Even if you memorize the course you will need to make every tricky jump, as falling can easily net you last place.
One nice thing is that you won't self destruct from missing too many check points, you simply need to make it to first over the wind course, hills and roof tops. The final check point will be inside a moving Health Semi, meaning that it can easily be close to your location or half way across the map. This can also lead to tension at the end as someone in second or third place could get to the bomb trigger first.
Overall use the fastest car possible: Crimson Fury. It's all about speed here but you can also destroy a few pesky competitors along the way, such as Reaper and Kamikaze.
Sweet Tooth's Carnival of Carnage
Unlocks: Skin Packs (Based on difficulty), Laser Sidearm (Twisted)
Time for the final showdown and last boss battle. This fight is scattered over multiple sections with many different objectives. A beefy vehicle will help greatly in this match, but we personally go with either Meat Wagon or Shadow for their special moves.
The first section will be underneath the massive goliath. You can find health and weapons between each set of tires and this hideaway will provide a few seconds of protection from the Sweet Tooth enemies and rampant laser fire. Your goal is to destroy the clown face that pops down every once in awhile. It doesn't have much health, but can counter with a powerful flame thrower. Keep your distance and unload missiles to stay safe.
For the second round you'll be inside a pinball machine. The large red bumpers all around will deal small amounts of damage if you knock into them. However, if you can bash into the blue health markers to turn some of the bumpers into healing markers for a time.
You'll notice running around the area are many sweet tooth minions wielding chainsaws and bombs. Your goal is to avoid the chainsaw users and go after the few with bombs. If there are no more bomb enemies around, hit the bullseye in back to summon more. With a bomb clown strapped to your hood, jet up a ramp and plow into the clown face's eyes and nose. Yup, you'll need to do this process three times.
Once the face is blown away, you'll need to travel through an obstacle course pipe. This isn't simply about speed: you can get by many traps by actually slowing down and switching your time. Alternately you can put up your shields and drive through the crush blades and balls while taking some amount of damage.
Once all the way through the smashing balls and spinning fans you'll automatically switch to a Talon.
For this next area you will need to take out the Sweet Tooth minions until they are fully disabled (a pinkish-purple meter will appear around them). When this happens, switch to your magnet special weapon and grab the minions. Fly them over to the top of the Carnage's head and drop them inside to deal heavy damage. Four or five will be enough to destroy the Carnival of Carnage and end the game.