While this save editor has been discussed on the Bioware forums, there's no need to go into too much detail. However, since this forum does not have a topic on this save editor, I thought that I should post one.
Features:
-Can add or remove weapons and weapon mods to your arsenal
-Can set the level of your weapons and mods (I-X for weapons and I-V for weapon mods)
-Can add any # of any available weapon mod to any weapon (i have an assault rifle and i put shotgun mods on it and there is no limit to how many mods i can put on it)
-Can edit your character's current weapon loadout from the last save as long as level, class, skill points, squad stats, and powers available to use (only adding bonus powers will work)
-Can edit ingame quests, and even storyline position
-Can edit a custom face Shepard
-Edit the plot of what happened in the current and past games
-Start from scratch (create your own custom ME3 profile)
How to add weapons:
(You need to have the weapon dlc to add a certain weapon. Bioware has patched the game to prevent people from adding weapons via the multiplayer dlc so they can get the weapons in single player for free)
When you open up the save editor go to the RAW tab on it, and then go to Plot, and edit the Player Variables collection.
There you can add weapons and weapon mods and check out the ones you already have and modify their levels. Hit add and type the following to add a weapon (you can't add heavy weapons but you can put them on when you edit your loadout) After adding a particular weapon set the value from 1-10 to set it's rank (or 1-5 for weapon mods) and add the item again but with ".Flags" at the end and set the value to 1. For example:
Name: SFXGameContent.SFXWeapon_AssaultRifle_Reckoning
Value: (1~10)
add again:
Name: SFXGameContent.SFXWeapon_AssaultRifle_Reckoning.Fl ags
Value: 1
The following is a list of all weapons (including heavy) and mods (minus the dlc ones)
Assault Rifles:
SFXGameContent.SFXWeapon_AssaultRifle_Reckoning = Chakram Launcher (reward for playing Kingdoms of Amalur: Reckoning Demo)
SFXGameContent.SFXWeapon_AssaultRifle_Mattock = M96-Mattock
SFXGameContent.SFXWeapon_AssaultRifle_Vindicator = M15-Vindicator
SFXGameContent.SFXWeapon_AssaultRifle_Saber = M-99 Saber
SFXGameContent.SFXWeapon_AssaultRifle_Avenger = M-8 Avenger
SFXGameContent.SFXWeapon_AssaultRifle_Revenant = M-76 Revenant
SFXGameContent.SFXWeapon_AssaultRifle_Cobra = Phaeston
SFXGameContent.SFXWeapon_AssaultRifle_Valkyrie = N7-Valkyrie
SFXGameContent.SFXWeapon_AssaultRifle_Argus = M-55 Argus
SFXGameContent.SFXWeapon_AssaultRifle_Geth = Geth Plasma Rifle
SFXGameContent.SFXWeapon_AssaultRifle_Collector = Collector Assault Rifle
Pistols:
SFXGameContent.SFXWeapon_Pistol_Predator = M-3 Predator
SFXGameContent.SFXWeapon_Pistol_Thor = Arc Pistol
SFXGameContent.SFXWeapon_Pistol_Carnifex = M-6 Carnifex
SFXGameContent.SFXWeapon_Pistol_Ivory = M-77 Paladin
SFXGameContent.SFXWeapon_Pistol_Eagle = N7-Eagle
SFXGameContent.SFXWeapon_Pistol_Talon = M358 Talon
SFXGameContent.SFXWeapon_Pistol_Scorpion = Scorpion
SFXGameContent.SFXWeapon_Pistol_Phalanx = M-5 Phalanx
Shotguns:
SFXGameContent.SFXWeapon_Shotgun_Katana = M-23 Katana
SFXGameContent.SFXWeapon_Shotgun_Eviscerator = M-22 Eviscerator
SFXGameContent.SFXWeapon_Shotgun_Scimitar = M-27 Scimitar
SFXGameContent.SFXWeapon_Shotgun_Claymore = M-300 Claymore
SFXGameContent.SFXWeapon_Shotgun_Geth = Geth Plasma Shotgun
SFXGameContent.SFXWeapon_Shotgun_Disciple = Disciple
SFXGameContent.SFXWeapon_Shotgun_Graal = Graal Sprike Thrower
SFXGameContent.SFXWeapon_Shotgun_Striker = M-11 Wraith
SFXGameContent.SFXWeapon_Shotgun_Crusader = N7-Crusader
SFXGameContent.SFXWeapon_Shotgun_Raider = AT12-Raider
SMGs:
SFXGameContent.SFXWeapon_SMG_Shuriken = M-4 Shuriken
SFXGameContent.SFXWeapon_SMG_Tempest = M-9 Tempest
SFXGameContent.SFXWeapon_SMG_Locust = M-12 Locust
SFXGameContent.SFXWeapon_SMG_Hornet = M-25 Hornet
SFXGameContent.SFXWeapon_SMG_Hurricane = N7-Hurricane
Sniper Rifles:
SFXGameContent.SFXWeapon_SniperRifle_Mantis = M-92 Mantis
SFXGameContent.SFXWeapon_SniperRifle_Viper = M-97 Viper
SFXGameContent.SFXWeapon_SniperRifle_Raptor = M-13 Raptor
SFXGameContent.SFXWeapon_SniperRifle_Incisor = M-29 Incisor
SFXGameContent.SFXWeapon_SniperRifle_Indra = M-90 Indra
SFXGameContent.SFXWeapon_SniperRifle_Widow = M-98 Widow
SFXGameContent.SFXWeapon_SniperRifle_Valiant = N7-Valiant
SFXGameContent.SFXWeapon_SniperRifle_BlackWidow = Black Widow
SFXGameContent.SFXWeapon_SniperRifle_Javelin = Javelin
Heavy Weapons:
SFXGameContent.SFXWeapon_Heavy_Blackstar = Reaper Blackstar
SFXGameContent.SFXWeapon_Heavy_Cain = M-920 Cain
SFXGameContent.SFXWeapon_Heavy_ArcProjector = Cerberus Arc Projector
SFXGameContent.SFXWeapon_Heavy_Avalanche = Avalanche
SFXGameContent.SFXWeapon_Heavy_FlameThrower_Player = Firestorm
SFXGameContent.SFXWeapon_Heavy_GrenadeLauncher = Grenade Launcher
SFXGameContent.SFXWeapon_Heavy_MiniGun = Geth Spitfire
SFXGameContent.SFXWeapon_Heavy_MissileLauncher = Missile Launcher
SFXGameContent.SFXWeapon_Heavy_ParticleBeam = Collector Particle Beam
SFXGameContent.SFXWeapon_Heavy_RocketLauncher = Cobra Rocket Launcher
SFXGameContent.SFXWeapon_Heavy_TitanMissileLaunche r = Hydra Missle Launcher
SMG:
SFXGameContent.SFXWeaponMod_SMGDamage = SMG High Calliber Barrel
SFXGameContent.SFXWeaponMod_SMGConstraintDamage = SMG Heat Sink
SFXGameContent.SFXWeaponMod_SMGStability = Ultra Light Materials
SFXGameContent.SFXWeaponMod_SMGMagSize = SMG Extended Clips
SFXGameContent.SFXWeaponMod_SMGAccuracy = SMG Scope
Assault Rifle:
SFXGameContent.SFXWeaponMod_AssaultRifleStability = Stability Damper
SFXGameContent.SFXWeaponMod_AssaultRifleMagSize = Assault Rifle Extended Clips
SFXGameContent.SFXWeaponMod_AssaultRifleForce = Assault Rifle Pierce Mod
SFXGameContent.SFXWeaponMod_AssaultRifleDamage = Assault Rifle Extended Barrel
SFXGameContent.SFXWeaponMod_AssaultRifleAccuracy = Assault Rifle Scope
Sniper Rifle:
SFXGameContent.SFXWeaponMod_SniperRifleTimeDilatio n = Concentration Module
SFXGameContent.SFXWeaponMod_SniperRifleReloadSpeed = Sniper Rifle Spare Thermal Clip
SFXGameContent.SFXWeaponMod_SniperRifleDamage = Sniper Rifle Extended Barrel
SFXGameContent.SFXWeaponMod_SniperRifleConstraintD amage = Sniper Rifle Pierce Mod
SFXGameContent.SFXWeaponMod_SniperRifleAccuracy = Enhanced Scope
Shotgun:
SFXGameContent.SFXWeaponMod_ShotgunStability = Shotgun Spare Thermal Clip
SFXGameContent.SFXWeaponMod_ShotgunMeleeDamage = Shotgun Knife
SFXGameContent.SFXWeaponMod_ShotgunDamage = High Calliber Barrel
SFXGameContent.SFXWeaponMod_ShotgunAccuracy = Smart Choke
SFXGameContent.SFXWeaponMod_ShotgunReloadSpeed = Shotgun Shredder
Pistol:
SFXGameContent.SFXWeaponMod_PistolStability = Pistol Melee Stunner
SFXGameContent.SFXWeaponMod_PistolReloadSpeed = Pistol Pierce Mod
SFXGameContent.SFXWeaponMod_PistolMagSize = Pistol Extended Clips
SFXGameContent.SFXWeaponMod_PistolDamage = Pistol High Calliber Barrel
SFXGameContent.SFXWeaponMod_PistolAccuracy = Pistol Scope
Hope this helps.