Gauntlet How to use Custom GameMode

[Helghast]

I am using Gauntlet for automated tests.
But I have come up with launching a map with a clean gamemode, such as the GameModeBase.
[link text][1]

The problem this is the command to launch maps with a specific gamemode:

/Game/Maps/TestLevel?game=/Game/Blueprints/GameModes/BP_CustomGM.BP_CustomGM_C

But Gauntlet removes the question mark and opens it with the default gamemode.

Pre-formatting Commandline: /Game/Maps/TestLevel?game=/Game/Blueprints/GameModes/BP_CustomGM.BP_CustomGM_C

Post-formatting Commandline: /Game/Maps/TestLevel game=/Game/Blueprints/GameModes/BP_CustomGM.BP_CustomGM_C

I have looked at the Gauntlet code that formats the command line and I do not see how to prevent it from removing that symbol in the regular expression:

Any ideas?

[Helghast]

Well then, with this more or less ugly parsing at the end of the method, I can make it keep the sign (?) and load the game mode on the fly.

any other recommendation is welcome