So I downloaded this mod off of Fallout 3 Nexus called CubeExperimental. It looked pretty awesome. the mod used an installer to install itself, so I ran it and started up Fallout 3. it appeared to start up normally, except it wouldn't respond to my mouse or keyboard. I didn't think any thing of it, 'cause sometimes the game just doesn't want to let me skip the title slides. but then it got to the main title screen, and stopped. No Fallout 3 logo, no menu, just that guy in power armor, it just locks up. I figured it was probably that mod, so I double clicked on the uninstaller they provided, uninstalled it, and tried again. same thing happened. so then I got rid of all the mods I had installed since my last successful start up. same thing happened. so i uninstalled and reinstalled and now it just insta-crashes. I have been at it for the last 4 days and am at the end of my rope, so, yeah,...

I'm thinking its a load order problem so I'll post it. If its not, I'll post a dxdiag. Please help.
*NOTE* my own mods are labeled as such and have a short description
Load Order, according to FOMM:
[X] Fallout3.esm
[X] Anchorage.esm
[X] ThePitt.esm
[X] BrokenSteel.esm
[X] PointLookout.esm
[X] Zeta.esm
[X] FallsChurchMetroFix.esm
[X] CRAFT.esm
[X] CALIBR.esm
[X] xCALIBR.esm
[X] 20th Century Weapons.esm
[X] FOOK2 - Main.esm
[X] FOOK2 - [[censored]] World And Neighbourhood Kit.esm
[X] FOOK2 - [DIK] DLC Improvement Kit.esm
[X] Mart's Mutant Mod.esm
[X] RH_IRONSIGHTS.esm
[X] Sniper Equipment - Remington M24 SWS - MASTER.esm
[X] S.P.L.A.T. - MASTER.esm
[X] SS Master File.esm
[X] SS Creature Compendium.esm
[X] Tau Ammo.esm
[X] TR4F2.esm
[X] Ahztek's M16 Pack.esm
[X] Millennium Falcon 2.0.esm
[X] CRAFT - Activation Perk.esp
[X] CALIBRxMerchant.esp
[X] DK_BulletTime.esp
[X] Sprint Mod.esp
[X] RH_IronSights_Basic_VanillaPlugin.esp
[X] RH_IronSights_Basic_PittPlugin.esp
[X] RH_IronSights_Basic_PointLookoutPlugin.esp
[X] 1Animated Nightvision goggles.esp
[ ] LurkTank.esp
[X] Classic Fallout Weapons BETA.esp
[X] Mannequin.esp
[X] SShop.esp
[X] PersonalVertibird.esp
[X] FOOK2 - Main.esp
[X] FOOK2 - [DIK] DLC Improvement Kit.esp
[X] FOOK2 - Mothership Zeta.esp
[X] FOOK2 - Main Level Up Fix 1.3.esp
[X] FOOK2 - DIK Level Up Fix 1.3.esp
[X] WeaponModKits.esp
[X] WeaponModKits - FOOK.esp
[X] WeaponModKits - OperationAnchorage.esp
[X] WeaponModKits - ThePitt.esp
[X] WeaponModKits - BrokenSteel.esp
[X] WeaponModKits - PointLookout.esp
[X] WeaponModKits - Zeta.esp
[X] Tactical Weapons by gRs Frederyck.esp
[X] xCALIBRmunitions.esp
[X] ZL-ACR.esp
[X] CS_ LightsaberQuest.esp
[X] CS_LightsaberQuest - Objectives Patch.esp
[X] ZL-MP5 Pack.esp
[X] Dragonskin Tactical Outfit.esp
[X] DragonskinBonusPack.esp
[X] AdvancedReconGear.esp
[X] RobCo Certified.esp
[X] Mart's Mutant Mod.esp
[X] Mart's Mutant Mod - DLC Anchorage.esp
[X] Mart's Mutant Mod - DLC The Pitt.esp
[X] Mart's Mutant Mod - DLC Broken Steel.esp
[X] Mart's Mutant Mod - DLC Point Lookout.esp
[X] Mart's Mutant Mod - DLC Zeta.esp
[ ] Mart's Mutant Mod - No Corpse Flies.esp
[X] Mart's Mutant Mod - No Floaters.esp
[X] Mart's Mutant Mod - No Ghoul Raise.esp
[X] Mart's Mutant Mod - No Size Scaling.esp
[ ] Mart's Mutant Mod - No Skeleton Decay.esp
[X] Mart's Mutant Mod - No Wanamingos.esp
[ ] Mart's Mutant Mod - Hunting & Looting.esp
[ ] Mart's Mutant Mod - Increased Spawns.esp
[ ] Mart's Mutant Mod - Natural Selection.esp
[ ] Mart's Mutant Mod - Tougher Traders.esp
[X] Mart's Mutant Mod - Zones Respawn.esp
[X] Mart's Mutant Mod - FOOK2.esp
[X] Mart's Mutant Mod - FOOK2 - DIK.esp
[X] bltc.esp
[X] BLTC Less Addictions.esp
[X] 1PipboyPDA.esp
[X] 20th Century v5 ALIVE (Vendor).esp
[X] 20th Century v5 ALIVE (Containers).esp
[X] 20th Century v5 ALIVE (NPC_Settler).esp
[X] 20th Century v5 ALIVE (Vault 101).esp
[X] 20th Century v5 ALIVE (RivetCity).esp
[X] 20th Century v5 ALIVE (Raider).esp
[X] 20th Century v5 ALIVE (Slaver).esp
[X] 20th Century v5 ALIVE (Chinese Ghoul).esp
[X] 20th Century v5 ALIVE (SuperMutant).esp
[X] 20th Century v5 ALIVE (Talon_Regulator).esp
[X] 20th Century v5 ALIVE (Brotherhood_Outcast).esp
[X] 20th Century v5 ALIVE (TEST Container).esp
[ ] F3UmpaAnimation.esp
[ ] The Groovatron.esp
[X] xCALIBR_override.esp
[X] ClawCompanion.esp
[X] SS Weapon Effects.esp
[X] SS Enhanced Combat Maneuvers.esp
[X] CreaturePoses.esp
[X] Weak-EasyShield.esp
[X] FOOK2 - RH_IronSights.esp
[X] WeightedCompanionCube.esp
[X] Weighted Storage CubeV2.esp
[X] xm8loot.esp >>>>>mine adds XM8s to the FOOK leveled lists
[X] Spartan Armor.esp
[X] WMK-RH IronSights.esp
[X] 20thCWItemPlacement2.esp
[X] complete 20th century iornsights compatability.esp
[X] megatonhouse.esp >>>>>mine puts my items in the megaton house
[X] steelarmor.esp >>>>>mine god item
[X] supersniper.esp >>>>>mine god item
[X] armor.esp >>>>>mine god item
[X] 20mmcannon.esp >>>>>mine god item
[X] followers.esp >>>>>mine sets megaton water guy to respawn
[X] decimator.esp >>>>>mine god item
[X] test.esp >>>>>mine test mod
[X] brokensteelgun.esp >>>>>mine god item
[X] pittgun.esp >>>>>mine god item
[X] armorancorage.esp >>>>>mine god item
[X] highlevelcap.esp >>>>>mine
[X] ancharmor2.esp >>>>>mine god item
[X] anchgun.esp >>>>>mine god item
[ ] dbarmor.esp >>>>>mine test mod
[X] Sniper Equipment - Remington M24 SWS - v1.0.esp
[X] Monster_Costumes.esp
[X] JokeWeapInsideJoke.esp
[ ] Tau FireTeamv4.esp
[X] geoffTest.esp >>>>>mine havok super-volcano demo
[X] Rorshach.esp
[X] AAR525.esp
[X] 700NE rifle.esp
[X] Defender .600.esp
[X] i-rifle.esp
[X] g36mod.esp
[X] m16mod.esp
[X] FN SCAR.esp
[X] Barrett M468.esp
[X] LR300_Arpeggiator.esp
[X] H&K_M8_redlineC64.esp
[X] AS50 - CALIBR.esp
[X] Slam Desert Eagle.esp
[X] Slam MP5.esp
[X] Slam M4 Pack.esp
[X] Slam M16 Pack.esp
[X] Slam MK46_48.esp
[X] Slam Sniper Package.esp
[X] SniperPack by Cornflower.esp
[X] Mk48 MG.esp
[X] ModernWarfare.esp
[X] RPG-7.esp
[X] RD_Vault77Puppet.esp
[X] crowbar.esp
[X] Slam Snipe Change.esp >>>>>mine changes scope reticule for the SR-25
[X] sniperScopeChange.esp >>>>>mine changes sniper scopes
[X] AdvancedWeaponsRiddle.esp
[X] halo wepons.esp
[X] Strike Controller.esp
[X] Weak-EbonTek.esp
[X] VisionMod-Tom.esp
[X] fookReloadFix.esp >>>>>mine changes reload animation to better fit certain guns
[X] SniperAimCorrected.esp
[X] stash3.esp
[X] Sanctum.esp
[X] Sanctum-Storage.esp
[X] The Pelican.esp
[X] fawkesmask.esp
[X] FF_PortableLabInfirmary.esp
[X] FDA1x.esp
[X] BLTC No Overdosing.esp
[ ] WackAMoleRatForPeople.esp >>>>>mine
[ ] DanceDance.esp >>>>>mine used with umpa dance animations
[ ] scopeTest.esp >>>>>mine test mod not used
[X] DeathclawFriend.esp >>>>>mine makes the animal friend perk apply to deathclaws
[X] cheaperAmmo.esp >>>>>mine makes FOOK ammo cheaper
[ ] Tau Armor and Weapons And Vendor.esp
[ ] Shotgunners.esp.esp
[ ] Tau Armor and Weapons And Vendor - Zeta Addon.esp
[ ] Tau FireWarrior Chap - 1.esp
[X] GhostCombatHelm.esp
[X] SteinerCombatGear.esp
[X] HoverChair 0.4.2.esp
[X] Halo vehicle Pack.esp
[ ] pilotable vertibird BETA.esp
[X] decoy_can.esp
[X] HoverChair 0.4.2 - MK2.esp
[ ] CD HEV Suit.esp
[ ] M8Xuanlong.esp
[ ] PhysicsFury.esp
[X] FullAutoPistolsV20test.esp
[X] TR4F2_v5.esp
[ ] dogs meaty pack.esp >>>>mine not used
[ ] 50calAmmoLoot.esp >>>>mine not used



as for my own mods, they have never given me trouble before, so I don't think that they are to blame.

So after getting some sleep and popping some heads on the xbox version of fallout 3, I decided that, since I had deterrmined that my problem was a missing master file, I would... ill finish later

*EDIT* the bell rang, I guess that is what I get for trying to do this near the end of the period lawl. anyhoo, since I determined my insta-crashing was due to a missing master, I decided that I would use FOMM to find which mod had a missing master, turned out to be one of my mods.


anyhoo, long story short, I was an idiot, I fixed my problem and now it works, so, yeah guess this thread can be closed

Glad you got it sorted. Closed per OP request.