How to test


Each Step is Important

  1. Back up your “Bdg.txt, savegame, 2dGauge, and keyboard” file/folders (these are the files you need to save all your setting and joystick buttons/settings)
  2. Download the 2.11 self installer
  3. Download the latest 2.12 build from the BDG Beta Testing forum
  4. Uninstall old version or BoBII
  5. Delete all files from the BoBII folder (leave none). [IMPORTANT: These old files left by the uninstaller can cause issues with the new EXE.]
  6. Run a Registry cleaner (like CC cleaner – a free program) as you had an old install of BobII, and there is always old BobII stuff left behind. Clean everything! [bolded text – stickman’s additional advise]
  7. Defrag hard drive (if you have time and harddisk performance is important)
  8. Reinstall BoBII game CD or Download version
  9. Run (execute) the 2.11 and the Multiskin self- installers (only 2.11 and MultiSkin)
  10. Unzip the 2.12 build into your Battle of Britain II game folder (replace the existing files).
  11. Paste the saved “Bdg.txt, savegame, 2dGauge,and keyboard file/folders” into your BOBII folder (this restores all your settings and joystick buttons you had)
  12. JUST BEFORE PLAYING GAME, turn OFF Anti-virus, Spyware, and other unnecessary background programs as they can slow the game down and prevent files from loading (CTD), interrupt BoBII with pop-ups (etc,) and cause a CTD.

Since I recommended you to save the “savegame” folder so that your old setting will be restrored, the following should be clearly understood about the old savegame folder:

Campaign SaveGames problems

When you step up to a new BOBII Update (like testing the latest 2.12 build) , the EXE may have changed (a code change) and references to the BOBII data in an old savegame (base on the old EXE base code) will have changed.

I do not recommend you running an old campaign savegame with a new updated EXE (new code). The new code can be uncompatible with the old savegame.

Running an old savegame with a new update code base is invalid and should not be done. You may/will experience problem (CTD, or other strange and unpredictable as the code trys to execute against an old savegame).

You should delete all your savegames ( named .bSL and .bSR, and Auto_Save.BSL and Auto_Save.BSR), and start a new campaign to prevent having CTD and other significant problems..

I would “always” start a new campaign when changing to a new code base and delete all the old savegames…



Mission: (Instant action [name], LW/RAF Commander/Single Player Campaign)



Formation position:

The issue:



Instant Action missions:

Test all missions. Pay special attention to

  • Flight modeling
  • AI behavior
  • Radio commands and sounds


  • New RAF , new Luftwaffe, all phases (you can do part of this job if you want, for example RAF convoy phase)
  • Load and test old (saved) RAF and LW campaigns
  • Campaign photos
  • Reports

All pilotable planes

  • Me109
  • ME110 (including engine selection)
  • JU87
  • Spitfire
  • Hurricane

All bombers and gunner positions

  • DO17
  • JU88
  • HE111


  • Map including map features such as accel.
  • Shooting, including proper gun sounds
  • Bail out
  • Keyboard Roving cam
  • Keyboard rudder – pedals/twist-rudder
  • Trim in all aircraft
  • Ju87 bombing
  • Ju87 dive breaks
  • ME110 bombing
  • F11 impact toggle
  • Damage modeling in all aircraft
  • Replay and ability to edit replay
  • Clickable cockpit including engine management
  • Keyboard engine management


  • Padlocking targets
  • Padlock center most target. Test draw box and ability to change it.
  • Padlock diamond
  • TrackIR
  • Shift F7+F8

BDG features:

  • WinAMP
  • FoV
  • Bomber stragglers
  • Start from pen
  • Engine Always Running
  • No Friendly Collisions
  • No Engine Cutout
  • No Stall Horn
  • Fighter Damage
  • Enable EPI
  • Play Intro Video
  • Skip Quick Videos
  • Skip Videos
  • Head Bobbing
  • No padlock Head Bob
  • Preload Standard
  • Auto Preload
  • High-res Landscape
  • Enable AutoGen
  • TrackIR
  • Padlock overrides TrackIR
  • EPI Radius/EPI Y Radius
  • Pan Speed Factor
  • Artificial Horizon Size
  • View Distance Factor
  • WK_Landscape
  • Gun Convergence


  • IA MultiSkin RAF
  • IA MultiSkin LW
  • Campaign MutiSkin RAF
  • Campaign MutiSkin LW


  • Windowed Mode
  • Single Object placement
  • Template Object placement
  • Key Mapping
  • Mouse Roving Cam
  • Mouse Wheel Zoom Control


  • Clean bdg_out file
  • Debug output file

System: (example)

  • CPU: Intel Pentium4 3.00GB (2CPUs)
  • GPU: ATI PCI-Express X700 256MB
  • Sound: On board sound
  • OS: WinXP
  • Joystick/Throttle/Pedals
  • TrackIR ?
  • Install order : on top of v2.07