Version Rollback?

[lococarl]

So, I have recently been informed that a lot of the top mods currently aren't compatible with the newest 1.2 update of KSP. I was wondering how could one go about reverting my game back to 1.1.3 or something. 

• I am using steam
• I honestly could care less about most of my saves
• I have a boatload (more like an intergalactic capital ship turned into a cargo ship full kind of boatload)
• This is mostly in the name of BDArmory

Thanks in advance,

-lococarl, over and out.

**P.S.: Here's what's in my GameData folder:

• 000_USITools (Miscellaneous plugins and such for USI mods near bottom of list)
• BDArmory (RIP BDA, no parts show up in 1.2, really itching to try for first time)
• CommunityResourcePack (No idea where I got it from)
• Eskandare_Heavy_Industries [CVX (Only having problems with launch)]
• ExtraplanetaryLaunchpads (Out of date)
• Firespitter (Not my favorite, pretty janky if you ask me)
• JSI [RasterPropMontiter (I guess it's working)]
• KAS (Haven't figured out how to really use it yet, for lack of trying)
• KAX (Has fallen by the wayside because of KSO)
• Kerbaltek [Hyperedit (Working)]
• KIS (Haven't delved into its wonders at all yet)
• KSO (Love it very much, 99%* working)
• SHED (Haven't used yet but works)
• SM_Marine (Only having problems with launching boats)
• SmokeScreen (Due to dependencies, also have no idea what it does)
• Squad (Stock)
• TweakScale-master (Fully functional)
• UmbraSpaceIndustries (Akita, FX, Karibou, Konstruction, and Malemute)
• VanguardTechnologies (EVA parachutes and ejector seats, haven't booted game with it yet)
• VesselMover (Tab not appearing at top of screen, I call it not working)
• WildBlueIndustries (Buffalo MSEV, haven't booted game with it yet)

Hope someone can inform me on what I'm doing wrong with some of these or how to use them.

*There are some screwy things in KSO (ie.: physics loads for already landed helicopter from previous flight with engine left on and it spins and flips all over and blows up).

Edited November 2, 2016 by lococarl
Needed to elaborate further on saying that I had a "boatload" of mods installed.

[Lokachop]

steam betas it can make you get to 1.1.3 at least

Edited November 12, 2016 by Lokachop

[FizzerUK]

as @Lokachop said,

Steam will let you roll back. It is under BETA section of the game.

So right-click ksp in games >>  Properties >> BETAS, tab >> Drop-down and select Previous .....

Make a copy of folder before doing it.

Also you can make as many copies of KSP as you like and run them anywhere, don't have to run through steam.

My main game is NEVER the one I play in the steam folder in case it ever gets accidentally updated.

[ExplorerKlatt]

Ok bdarmory works for 1.2.1.

All USI mods are updated for 1.2. As is hyperedit and all wild blue industries.  Extraplanetary launch pads is also 1.2.1 compatible. KIS and KAS are both compatible with the new version. 

This is a continuation of vanguard Eva parachutes 

Firespitter and community resource pack are dependencies of USI. 

I found this through about 10 mins of searching on the forums.