I didn't know about QWERTZ oO I guess I'll need to prepare a Unreal template with a menu to remap keys, so that it's not a problem in the future. (as a french guy, I'm used to messing with Windows language input preferences to switch to QWERTY, but it's not ideal).
And you're right for the violent start, perhaps without a tutorial level, it could have been a slower start with just 1 controllable agent, and then you free more and it becomes crazy ... but yeah didn't have the time to properly think and implement smart things during the jam (1st one for me, so I'm not used to this)
Thanks for the feedback !