Walking Battle Tank
The High Velocity Armour Piercing (HVAP) Wraith is a combination of both Human and Chimeran technology. It is capable of firing approx 1,200 rounds a minute and also has a handy shield to stop incoming fire.
The weapon's primary fire is perfect for holding down and watching enemies fall in your wake. It's essentially a chaingun, so it needs a short period of time to charge up before the mass enslaught of bullets happens, but once it does little will be able to stand up to the sheer firepower. The only way they can stop it, is to defeat the user, which is where the secondary fire comes into play. The secondary fire creates a Chimeran based shield which can stop all incoming fire (except Auger bullets), from the front, but it still leaves the back completely exposed.
Obviously this weapon has insane damage potential, but it doesn't appear that often throughout the single player campaign, so use it wisely when it appears as the ammo doesn't last long.
Using the HVAP Wraith Online
Cooperative: The Wraith is the mandatory weapon for the Soldier class and it can't be used by anyone else. To be fully effective, a Spec Ops must be present in order to help maintain the Wraith's Shield, in order to provide cover for both the Soldier and the rest of the party. Without this, it's difficult to use the Wraith due to the lack of mobility it offers.
Competitive: The Wraith should generally be avoided in competitive multiplayer because the shield can't be used at the same time as firing. This basically renders the weapon useless, as it has few of the positives that make it so great in the other modes. While firing, the player will pretty much become stationary target for the opposition with no defence, which makes it very hard to recommend.