Terra Maledicta Guide

Weapons

The Decimator Shield cannot be Pack-a-Punched and is only available via the following quest:

Open Merchant Road by completing a Portal Objective.
Walk up to where the Decimator Shield is being held in Merchant Road to start a conversation with the Shield. Note: The player can start a Portal Objective as soon as the conversation starts if they don't care to listen to it.
Open East Spring by completing a Portal Objective.
Interact with the rune stone near Demonic Frenzy (Speed Cola) in the Tents area in the East Spring Area.
Wait for the conversation to finish and enter the Portal that spawns behind the rune stone. Note: The conversation takes a full two minutes to finish.
Complete the Augmentor objective.
After returning to the Eastern Desert, shoot and destroy four crystals located around the spawn area.
Return to the Shield to start another conversation. Note: The player can start a Portal Objective as soon as the conversation starts if they don't care to listen to it.
Open West Spring by completing a Portal Objective.
Interact with the rune stone in the 'Bazaar' (Below Diabolical Damage/Deadshot) in the West Spring Area.
Wait for the conversation to finish and enter the Portal that spawns beside the rune stone. Note: This conversation takes about 1 Min and 30 Secs to finish.
Complete the Sacrifice objective.
After returning to the Eastern Desert, go back to the Shield and wait for it to break its way out and fall to the floor, allowing the player to pick it up.

Stats (Solo): Difficulty - 2/10, Est. Completion Time - 25 to 40 Mins

Obtain the Decimator Shield.
Open Debris Field by completing a Portal Objective.
Navigate to the Debris Field area and interact with the rune stone near Venomous Vigor (Quick Revive). Note: This conversation takes only about one minute to finish.
Enter the Void Portal near the rune stone.
While in the Void objective area, using the Decimator Shield's special ability (Slam), destroy four arms attached to various walls. The player can easily locate these arms by following the energy beams going from the Tome Page to each of the arms.
Once all four arms are destroyed, pick up the Tome Page and interact with the portal to the right of the Tome Page.
Upon returning to the Eastern Desert, the player will be given 10,000 points and be presented with various loot items and four loot chests. This will unlock the Void portal for the remainder of the current match.

Optional: To also get a Free Ray Gun, keep digging until it appears from one of the dig spots.
Dig four Lost Tome pages from the Dig Spots throughout the Eastern Desert.
Place Lost Tome pages on the Magical Barrier blocking the Deathmachine room in the Outpost Courtyard.
The Lost Tome pages must be placed in a specific order between 4 positions (Top, Bottom, Left, Right). If the first page disappeared when placed, it means it wasn't in the correct position, and it should be placed elsewhere. Any page placed in the wrong location will reset the entire puzzle.
Once all the pages are placed, the spell will fade and the Deathmachine will become available as a reward.
If the Ray Gun was dug up before opening the room, it would become available as a reward alongside the Deathmachine.

Dig up the radio antenna from one of the Dig Spots.
Place the antenna on the radio next to the armoured car at Merchant Road. This will spawn Boom-Schreiers.
Interact with the radio in the same room as Diabolical Damage (Deadshot) at Bazaar. This will spawn Boom-Schreiers.
Interact with the radio next to Venomous Vigor (Quick Revive). This will spawn Boom-Schreiers.
Interact with the radio inside the Market Storage (building near Deadshot). This will spawn Sturmkriegers.
When the last Sturmkrieger is killed, it will drop a chest which contains a random weapon as a reward.

Dig up the corrupted heart (purple orb) from one of the Dig Spots.
While holding the Heart, the player's health will be halved.
Place the corrupted heart at one of the highlighted dig spots.
Upon placing the Heart at one of the special dig spots, a Corrupted Heart will be rewarded to be used at the Altar of Covenants or Tome of Rituals.
The player can pick up the Heart again from where they placed it, however, there is nothing else to do with the Heart (that we know of).

Similar to Origins (BO2 & BO3), there are Dig Spots around the map that contain various items like loot, weapons, etc.

The shovel can be picked up from one of the following locations:
The dig spots also contain the items required to start the three side quests on the map: