Just got a new PC for Christmas, and was going to give this game a whirl.
Downloaded the game. Then immediately wanted to patch it. Then crashed with 'missing PAK file'.
Ran repair tool, repeatedly. It seemed to want to get the entire game again.
Finally googled the problem, and found the stand alone repair tool.
http://mwomercs.com/...public-release/
That seems to have fixed it. Bolding the two items I think were hanging it up.
Fixing mismatched files.
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin32\MWORepairTool.exe
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\CryRenderD3D11.dll
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\CryRenderD3D9.dll
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\d3dx11_42.dll
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\d3dx9_42.dll
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\fmod_event_net64.dll
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\fmod_event64.dll
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\fmodex64.dll
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\MWOClient.exe
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\nvDXTLibrary.dll
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin64\Txaa.win64.dll
Downloading file: D:\Program Files (x86)\Piranha Games\MechWarrior Online\Game\Planets.pak
-Fixed!
Cleaning unneeded files.
-Cleaned!
Cleaning FE textures.
-Cleaned!
Cleaning shaders.
-Cleaned!
Done!