There are rules I have set for these matches for balance, but you can ignore them if you want to;
~ All weapons and grenades are lvl 50, Everything else is lvl 60 (including the players).
~ Matches are in TVHM
~ Players have their BAR off
~ Tediore Reloads are not allowed to be used as a weapon unless the player is the Juggernaut.
~ All players must wear a specific shield and grenade
Action Skill:
- Athena can use her action skill only while Juggernaut, or as a weapon by quickly throwing.
- Wilhelm can use his action skill whenever. And cannot be specced into Kinetic Armor in the Dreadnaught tree.
- Nisha can only use her action skill as Juggernaut
- Claptrap's skill will not be used, randomness is bad for PvP.
- Aurelia can use her action skill whenever.
- Jack can only use his action skill as Juggernaut, or to trigger a kill skill by recalling the Jacks immediately.

Free For All

To create a Free For All game all you need to do is change the Allegiance of all the players to '00000000' (Barrel)
In Free For All players simply kill eachother and the last player alive scores a point.
The maximum count of points per match should be 5, but it's completely lenient.

Juggernaut

To create a Juggernaut game you need to set the Allegiance of player who is the Juggernaut to '00000000' Barrel but keep everyone else's the same.
Every time the Juggernaut changes replace their Allegiance with that of the other players (they should all have the same Allegiance if they aren't the Juggernaut)
The Juggernaut will equip certain items to boost their survivability.
In Juggernaut one player tries to survive against all the other players, when the Juggernaut dies the player that killed them becomes the Juggernaut.
The Juggernaut usually is confined into one room in the centre of the other players.
Juggernaut's score is counted in how many rounds you survive as Juggernaut and how many Juggernaut kills you have. 10-15 rounds a match.

Team Vs. Team

To create a Team Vs. Team match you must enter a duel between the 1st player and the 2nd player. Copy the 1st player allegiance then set the 3rd player allegiance to that. Copy the 2nd player allegiance and then set 4th player allegiance to that. Then end the duel and set the 1st and 2nd player allegiances to what they were in the duel (which are now stored in the 3rd and 4th player allegiances)

These allegiances should also be used for Juggernaut so that characters with pets won't hurt themselves.

You will need TechnoJacker's Cheat Table Compilation:
https://www.dropbox.com/sh/v2kg4nh9cfndq58/AAAjIOCO2JJGtPORmJxRIaVea?dl=0
You may want to use Gibbed's Borderlands: The Pre-Sequel! Save Editor:
http://blog.gib.me/2015/03/23/borderlands-the-pre-sequel-save-editor-revision-33/

Launch Borderlands: The Pre-Sequel!
Open TechnoJacker's Cheat Table Compilation
Check [Enable]
Check [Scripts]
Check [Lua Script Enablers]
Check Teleport Mod Enabler
Return to [Scripts]
*OPTIONAL* Check Gun Deletion Check Bypass
*OPTIONAL* Check Item Deletion Check Bypass
*OPTIONAL* Check Infinite Double Jump (So you can fly)
Return to [Enable]
Check [Co-Op Players]
Check [Allegiance]

Use the provided saves near the end of the guide for a general loadout and juggernaut items.

Teleporting

We will use the Teleport Script to place players into their stating positions each round:
1. Go to the locations you want your players to spawn at.
(Use Blink mod to get there faster)
2. Save the positions by changing the 'Save Slot Position'* in Cheat Engine and pressing '0' to save it
3. Press '.' to teleport to the positions and then 4, 5, or 6 to teleport the other players to you to you.
*Right click 'Save Slot Position' and click Set Hotkeys, set a hotkey to set the value to '4', it will also show you what the other hotkeys are for 1 through 3.

Maps & Locations

Some maps have postitions that work well with these forms of PvP, these are some that I think work well:

Key:
Xv1 = Juggernaut
1v1, 1v1v1, 1v1v1v1 = Free For All
2v2 = Team Vs. Team

VORAGO SOLITUDE
Supports all Gamemodes.
Teleport player 1 to X107652.875 Y-112485.3359 Z10474.12109, player 2 to X114923.7422 Y-177768.4375 Z9412.425781
*1v1v1* Teleport player 3 to X88617.375 Y-141745.2812 Z7937.694336
*1v1v1v1* + *2v2* Teleport player 3 to X81580.08594 Y-119923.5469 Z7078.913086, player 4 to X82211.6875 Y-172651.8438 Z5454.574707
*1v1(Alt)* Teleport player 1 to X124081.6094 Y-142787.7031 Z14391.43262, player 2 to X88617.375 Y-141745.2812 Z7937.694336
*1v1v1v1(Alt)* Teleport player 3 to X114923.7422 Y-177768.4375 Z9412.425781, Player 4 to X97371.35156 Y-175545.25 Z8008.71582
*Xv1* Teleport player 1 to X88617.375 Y-141745.2812 Z7937.694336, everyone else following 1v1v1v1(Alt) locations

HYPERION HUB OF HEROISM
Does not support 2v2 or 1v1v1v1.
Teleport player 1 to X-790.7214355 Y5921.995117 Z226.1551819, player 2 to X29197.22852 Y7408.392578 Z1048.155273
*1v1v1* Teleport player 3 to X13631.4873 Y-10556.06934 Z1991.155273
*Xv1* Teleport player 1 to X13771.47363 Y3376.160645 Z741.3070068, everyone else following 1v1v1 locations

RESEARCH & DEVELOPMENT
Does not support 2v2 or 1v1v1v1.
Teleport player 1 to X-37934.52734 Y1927.187256 Z-235.8447418, player 2 to X-32053.24414 Y23925.99609 Z596.1513672
*1v1v1* Teleport player 3 to X-22095.44141 Y12474.15918 Z-843.8433228
*Xv1* Teleport player 1 to X-33521.75781 Y11545.43945 Z-11.87159348, everyone else following 1v1v1 locations

TRITON FLATS
Does not support Xv1, 2v2 or 1v1v1v1.
Teleport player 1 to X-7013.436035 Y36727.28516 Z956.8762207, player 2 to X-10350.47266 Y13643.375 Z-1952.335449
*1v1v1* Teleport player 3 to X-33196.58203 Y21689.3457 Z-2693.69043
*1v1(Alt)* Teleport player 1 to X40123.95312 Y-16499.51172 Z-4010.282959, player 2 to X37770.8125 Y29560.68945 Z-208.2474976
*1v1v1(Alt)* Teleport player 3 to X23906.19922 Y6958.192383 Z-3004.423584

http://youtu.be/URNorNPzLkA
Download the character of your choice to:
Documents\My Games\Borderlands The Pre-Sequel\WillowGame\SaveData\NUMBERS\
Rename it SaveXXXX.sav (where you put numbers such as 0011 where the XXXX is)

Make sure when using the save you have Gun Deletion Check Bypass and Item Deletion Check Bypass enabled if you are the host.

Modded Items included:
Syntax;
Name "Name in Game": Juggernaut(Y/N), Required(Y/N), RARITY
Juggernaut means that it can only be used by the Juggernaut.

Cry Baby "The Machine": Y, N, PURPLE
The Probe "Lady Fist": N, N, PURPLE
Company Man "": Y, N, GLITCH
Support Grenade "Haymaker", N, Y, LEGENDARY
Reogenator "": N, Y, BLACK
3DD1.E "": Y, Y, BLACK