The engineer has the ability to aid his team by building fortifications, that keep the Nords in or out. Deploy ammo crates to make a more accessible refill for your ranged teammates. If you are so privileged to have an explosive barrel, or know someone who does you can blow up the nords. All engineer items ( deployable shield, barricade, heavy barricade, and explosive barrel.) are equipped in the support slot. There is only one "Engineer" item that can be equipped by medics or peasants, the deployable shield. You must be a certian level to see engineer items on the AH ( auction hall ) or equip a certian engineer item ( keep in mind you can pick up any engineer item off the ground ). Engineers cannot refill their barricades, deployable shields, heavy cades, small ammo crates, or explosive barrels ( unlike medic support items ).

All engineer items except for the dep shield are crafted by alchesmist. The dep shield is crafted by armorsmiths.
You can only see certian engineer items on the auction hall if you are the right tier.

The deployable shield, or commonly referred to as dep or dep shield. Is useable by ANYONE who can afford it. It is the weakest of the fortifications you can build, and provides the least coverage out of the three. It can be deployed instantly by equipping the dep shield and clicking the fire/swing button ( commonly, mouse 1/left mouse button ). It ill deploy a few inches infront of where your standing. Keep in mind you may not be able to deploy fortifications in certian places. To remedy this simply move around a little to get a spot where it will deploy at. It can be used to effictively block the nords, create a funnel, or block ranged enemy fire.

The small ammo crate is the first item to be unlocked by going engineer ( unlocked at Tinkerer ). It is instantly deployed upon equipping it and then pressing fire/swing button ( commonly, mouse 1/left mouse button ). After deploying it any ranged teammate can refill his or her arrows/bolts/medic boxes/thrwoing weapons. Keep in mind this box can only be used once by one player to refill, losing most of its potential.

The barricade, commonly reffered to as a cade, is the second item to be unlocked by the engineer ( tier 2, Apprentice ). This support item deploys a little differently from other engineer items. It has two stages of deployment. First you deploy the barricade as normal, like a deployable shield, instantly deploying it. It however is in a fragile useless state. It needs to be deployed by holding "F" when the screen reads "Deploy Barricade". It is quite like healing yourself at soup. Which means it can be interrupted, so do not run over the wood pile or infront of a person staring at a barricade pile. After you have finished deploying the Barricade it covers a fairly wide area, and is fairly resistant to attack. A friendly tip is to not stand on these barricades, they're two reasons for this. One, if the barricade is destroyed when you are standing on top of it, you will die. Two, if you are standing on a barricade it will make the nords attack the cade even more then usual.

Barricades that are colliding are known to cause crashes if zoomed in on, while looking at it.

The Heavy Barricade, commonly referred to as h cade, heavy cade, or heavy, is the third item unlocked by the enginner ( tier 3, Engineer ). This support item deploys a little differently from other engineer items. It has two stages of deployment. First you deploy the heavy barricade as normal, like a deployable shield, instantly deploying it. It however is in a fragile useless state. It needs to be deployed by holding "F" when the screen reads "Deploy Barricade". It is quite like healing yourself at soup. Which means it can be interrupted, so do not run over the wood pile or infront of a person staring at a barricade pile. It is a little more then twice the size of a normal barricade. It is ALOT thinner then the normal barricade, however that does not mean it is weaker. Being thinner it can be lined up easier without aking up as much space. It is a little less wide then the normal cade. It is very resistant to enemy attack. A friendly tip is to not stand on these barricades, they're two reasons for this. One, if the barricade is destroyed when you are standing on top of it, you will die. Two, if you are standing on a barricade it will make the nords attack the cade even more then usual.

Barricades that are colliding are known to cause crashes if zoomed in on, while looking at it.

The Explosive Barrel, is the fourth item unlocked by the enginner ( tier 4, Siege Engineer ). It is equipped like a Small Ammo Crate, then deployed like a deployable shield. What this particular item does is either a gain or a loss ( I will explain how it can be a gain/loss later ). Once you've deployed the barrel, it sits in place till it is hit with an arrow/melee weapon/thrown object. When the barrel is hit, it explodes causing most nords to die in a large radius. When I say most nords, I mean some nords like Odin or Thor dont die from it ( I have seen this a few times personally, on a few occasions the barrel causes enemies to go invisible ). The barrel only effects bots/agents, not horses ( like Sleipnir ). The barrel can be exploded by enemies or players. The barrel kills nords, but gives no xp or loot in the process ( which is why its a gain or a loss ), but is useful for getting out of tight spots.

The explosive barrel is known to cause crashes. One remedy is to turn off casualty reports, it has worked for me.

The barrel does not work on elevated surfaces, but this is soon to be fixed.