An information post in the Discord server explained the premise of the Last AK event which ran for 3 days:

Cobalt has left the Rust island, and with that they've taken all the guns with them. In this time players have had to resort to primitive means, but to the surprise of many a golden AK remains on the island, it is told whoever has this AK will be able to bring peace to the island and restore it to it's former glory.

So for this server, we will only have one event that will be announced on day one, this event is to help push the story, and give teams some conflict to start off with. At the end of Day 1 an announcement will happen in chat which will announce the coordinates for of the last AK, the last AK will be guarded by several longbow turrets, in a stone tomb. High value primitive items will be found within this location, alongside a golden facemask, golden ak, and a golden chest plate. All interactions and story going forward will be directed by the creators and the Kingdom leaders.

The map showed that there were four main factions, each based on an oasis in the four corners of the square-shaped island. There were also some minor factions. Documented factions included:

• Reksmore's Kingdom, located in the north-west, which had 85+ members. They included a faction called The Evles.
  
• Shephard's Kingdom, located in the north-east, which was also known as Shephard's Village Empire. It was based on the Holy Roman Empire. They had the most applications, which was noted as being "at full capacity" with 120+ members, so applicants were encouraged to join other tribes. They included a faction called BOGA.
  
• Cobalt Ruins, located in the south-west.
  
• Zombie's Kingdom, located in the south-east. Little was documented about them, as they seemed reclusive, but were noted as having atleast 50 members.
  
• The Merry Men owned a base in a snow biome in the middle of the map.
  
• The Dome tribe had a village in the north.
  
• The Swamp Men had a small village in the northern swamp.
  
• CML owned a fort in the south.

Atleast 24 players were Wanderers that did not (atleast initially) join a tribe. The event Discord server had links to Discord servers belonging to Reksmore, Jack (I assume that was Jack Shephard), and Zombie Barricade.

I believe that the rules of the event originally discouraged violence unless it was agreed out-of-character before starting the conflict. An exception to the rule was that killing was allowed in monuments. The FAQ channel of the event Discord hinted at the culture of war and diplomacy:

Q: Can I make my own faction that isn't related to a kingdom?
A: We recommend a faction to join under one of the three Kingdoms, but it is not required. Fair warning if you are not associated with a Kingdom, or factions from Kingdoms will have the power to attack you and put you under their banner, so it is best to ally or choose a Kingdom to represent your interests.

In the first two days of the event (20th, 21st Feb), there were minor incidents between some factions. The Merry Men were involved in many such cases due to their violence, while the other factions were (generally) more diplomatic.

The location of the Golden AK was revealed in a Discord announcement on the night of 20th Feb/morning of 21st Feb:

The Last Ak has been located in the mountains of the South-West (E8). It has been claimed and guarded by a group of Rogue Knights known as the Old Guard. They wish to claim the Ak for themselves and form a new grand kingdom and unite the fractured southern region of the AK as its Holy Relic.

Half an hour after the location of the AK was revealed, another announcement stated that "The Golden Ak Has been retrieved by the Emperor Jack Shepard of the North."

On 22nd Feb, there ended up being a small battle at the Elf Church, which was part of Reksmore's Kingdom. I heard that this conflict had involved Shephard's group attacking the Elves. The two sides had a religious disagreement, as they both had a church in their lands that each housed a sacred tree. One of the them was said to be a "false tree".

The Dome tribe joined the Kingdom of Reksmore. The Empire's Sacred Tree disappeared, and they felt that Dome had betrayed them. A diplomatic meeting between Dome and the Empire turned bloody on 22nd Feb.

In a battle on 23rd Feb, the Empire used multiple tug boats to travel to Reksmore's land and then use siege weapons to assault Reksmore's Fortress. Atleast 15 attackers used a raid base, a siege tower, a ram, three catapults, and four tugs. The Reksmore tribe fired bolts down at the attackers, and successfully defended their fort.

Forces of the Empire then met with the Dome tribe outside the Dome Castle, where the two sides negotiated, surrounded by siege weapons. The Empire then assaulted the castle - their oracle announced "avenge the Sacred Tree!" Atleast 12 attackers used a raid base, four siege towers, six rams, six catapults, and several horses. The Dome defenders were reinforced by the Elves - both the Dome tribe and the Elves were part of the Kingdom of Reksmore. The defenders successfully defended the castle, as the raid base appeared to have been blown up with Propane Explosive Bombs.

It was said that the AK had the Medieval Assault Rifle skin. I'm not sure how the AK was supposed to "bring peace to the island", as the Empire owned it, but didn't appear to use it in battle. I'm not sure if there was even any ammunition for it. I asked in the Discord for a summary of the storyline, but didn't get a serious reply.

For players in the east, I think that the event rolled over into the morning of Sunday 23rd Feb, but (for players in the US timezone) the event officially ended by Sunday. The server would remain open for the rest of that day so that players could finish up storylines and explore the builds.

Main index
- Roleplay
-- Roleplay events
--- Medieval Event The Last AK