Change the second weapon (Y button Xbox one) with anti titan weapon, in default control please... Great game
Can't you change the controls in the options menu? You can change the buttons to whatever you like if I'm not mistaken.
At this time you can only rebind mouse and keyboard, controllers quite a few different presets but you can not just rebind them. Hopefully they fix that. Controllers are already at a big enough disadvantage compared to M&K and I think because this game is not on PS4 there will be a lot of console players who chose not to make the adjustment to the superior control medium.