Borderlands-Style Fighting Arenas include 5 new custom arena world spaces and 8 modified vanilla cell arenas!

Custom Arenas:
Creature Dome: Fight through waves of creatures and animals where almost all creatures use their ambush animations to enter the dome! (exceptions: Yao Guai and mutant hounds as they do not have any). Travel to the arena by taking the boat north of Pickman Gallery. (6 Rounds)

Graveyard: Fight through hordes of Feral Ghouls and Glowing Ones with only small obstacles to use for combat. The entrance trapdoor is located next to the Mausoleums on the upper row in Wildwood Cemetery. (6 Rounds)

Construction Site: Fight through squads of Super Mutants, Raiders, and Gunners in a large arena with various long-range and close-quarters combat spots. Travel to the arena by taking the Vertibird on the Barge behind Boston Airport. (5 Rounds)

Marshland: Fight against waves of wildlife from Nuka-World and Far Harbor(and Trappers) in a big, wet, and open space! Travel to the arena by taking the rowboat docked on the pier next to Croup Manor. (7 Rounds)

Robot Factory: Fight through units of Independent Robots, Rust Devils, and Gunners accompanied by their respective robot armies around a large Factory. Be prepared as rounds toward the end turn into complete chaos! Travel to the arena by taking the Vertibird near the Wreck of the FMS Northern Star. (7 Rounds)

Arenas From Modified Vanilla Cells:
Kendall Hospital:  Fight against waves of Nuka-Raiders inside the big room of Kendall Hospital. Platforms were added and some walls were removed to increase mobility. Furthermore, the Gangs also fight against each other to see who's boss. Access through Arena Simulation Hub. (5 Rounds)

Combat Zone: Fight against waves of Triggermen, Children of Atom, and Pack-Gang Raiders inside the tightly packed space. Many small annoying obstacles have been removed and some platforms were added to increase the total traversable area. Access through Arena Simulation Hub. (5 Rounds)

Parsons State: Fight against waves of Raiders, Super Mutants, and Feral Ghouls inside the linear-like building. Many small obstacles have been removed, pathing has been refined and a second entrance to the garden has been added. Access through Arena Simulation Hub. (5 Rounds)

Institute Concourse: Fight against squads of Synths, Brotherhood of Steel soldiers, and Railroad agents with some extra earth-digging intruders! Access through Arena Simulation Hub. (6 Rounds)

Diamond City: Fight against armies of Minutemen, Gunners, Synths, and Super Mutants. Expect a real showdown with extra intruders like Ghouls and Mole Rats! Platforms have been implemented to add the rooftops as vertical space for combat. Access through Arena Simulation Hub. Had a lot of fun testing this one :) (7 Rounds)
There is also a separate EXTRA round starting with the button on the counter.

Cabot House: Fight against Berserk Raiders and Edwards Mercenaries, and even maybe the house residents! (5 Rounds)

Mass Fusion Basement: Fight against the Institute, Brotherhood of Steel soldiers, and robot defenses! Definitely one of the smaller and harder arenas. (5 Rounds)

Museum of Freedom: Fight against Minutemen, Berserk Raiders, and the Railroad. The generator area has been closed off, and a staircase has been added for easier traversal. (5 Rounds)

Parking Garage: Fight against glowing sea inhabitants in this 2-story dungeon. Vehicles have been removed and stairs have been added so both sides have ways for traversal. (6 Rounds) 

Arena Simulation Hub:
Craft the Arena Simulation Hub Lounger to any settlement under Furniture -> Miscellaneous. Activate it and wait until teleported. When using the lounger in the hub, you will be teleported into the lounger you used to go there.
Note: If you get an infinite loading screen after leaving the hub but you can hear NPCs and normal game sounds, save and reload.
Note: You can not use the lounger while wearing power armor. You can use Power Armor Delivery to teleport your armor to you.

Zombies Mode:
- Infinite rounds mode where it goes on until you quit! (or die!)
- Each round features an increasing number of enemies. (with a rate of A-Be^(C-D*round) for those curious.)
- Rounds cycle through the main factions featured in the Arena. (Except Construction Site.)
- After a certain amount of rounds, bosses and random encounters have a chance to occur!
- Rewards start small but increase linearly.
- All Arenas except Wildlife(Creature) and Marshland Arenas support this mode. (This is because those 2 Arenas function WAAY differently.)
- Start this mode by pushing the Arena button and selecting the mode.

Notes and Features:
- All custom arenas have a boss(with "invincible" in their name) for the last round! Other maps have Mini-Bosses for present factions in the last round!
- All custom arena entrances have their own map markers for fast travel after discovery.
- Waiting time is given between rounds to relocate or shop.
- You can cancel the arena anytime by pressing the main button again and confirming your decision.
- Arenas contain Vending Machines for spending caps! Huge thanks to Zorkaz for the awesome concept and resources!
- Even though the enemies spawned are selected from leveled lists, the arenas are not balanced with lower-level characters in mind.
- All arenas are infinitely replayable after completion
- Companions can follow you to the arenas.
- Bigger arenas have enemies tagged to make them easier to find.
- All arenas have PreCombine and PreVis data generated for maximum performance.






Installation:
-Install as any other mod using a mod manager. Or install manually by dropping contents in the data folder.

Compatibility:
-All arenas are inside their own world spaces and use vanilla assets (except for the vending machines). Only four entrance objects are implemented into the commonwealth. 
- Anything that alters leveled lists for the enemies inside the arenas will affect the rounds, however, this is also encouraged! Mods like Super Mutant REDUX , The Deadly Commonwealth Expansion (including its fix inside Optimization Patches Collection), Courser Crusher and Feral Ghouls Expansion Pack are highly recommended as they will work right out of the box! Be aware of mods that add other races inside the leveled lists, however (like radroaches inside feral ghouls).

Recommendations:
Recharging Shields System - To really add the Borderlands feel to the game.
Sprint Reload - You will be reloading a lot. You will want to move quickly while doing so.
NPC Level Scaling - If you still feel like it's too easy, try this. Enable Beefy Bosses for extra pain :) (If you are a low-level character, this will actually make it easier.)
Dogmeat - A True Companion - So Dogmeat does not go down instantly and is actually useful.
Borderlands Skag Dogmeat Replacer - Duh
While testing, I usually go in full-drugged and sometimes with Power Armor. Just so you know.

Issues:
- If the feral ghoul leveled list includes an enemy which can not use the required ambush animation (e.g. a random radroach), the spawned enemy on the top floor of the church inside the graveyard might get stuck. There is a failsafe implemented for this. Crouch until you are hidden, the enemy should commit die and progress the round.

To-do list:
- Further Arenas will likely be only added through commissions, as I view the mod as complete. The mod will still be updated for bug fixes and small things.
- Add a Factory Arena for robots.
- Add a Marshland Arena for all of Far Harbor.
- Add more smaller arenas from already existing cells.
- Implement a hub-like system.
- Add vending machines as shops.

XBOX Release: https://bethesda.net/en/mods/fallout4/mod-detail/4292336

Any feedback, screenshots, videos, and suggestions for balancing, map structure, or anything else are appreciated! Also if you encounter any issues or bugs please let me know!

Credits:
If you like the Vending Machines and would like to have them craftable and have them across the Commonwealth, please visit Vending Machines!
Huge thanks to Assathoth for his World Eater Deathclaw Skin used for Gruthar!
Thanks to jesusyvan for the USAF Logistics Depot structure, which is taken as a template for the Factory Arena!

P.S.: Source files for the scripts are included inside the archive for those interested. Also; Yes, this is my first mod.