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IW 1

Sound like a stupid question but here it is:

I just bought the game and got the key chart, problem is that I've got scandinavian keyboard and the ripple fire mode key isnt at the same place, so in the gatekeeper-mission that could be handy.

Can I remap it or which key ripple fire is in my keyboard?
Found it: letter F

Got gatekeeper through with few tries with 'lay behind L1 point' tactic. Ripple through waves 3-5 with 4,6,6, missile salvos:)