Re: PLZ can someone tell me how to fire the main gun on a tank in battlefield 1?

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@ElliotLH wrote:

Might be worth pressing triangle in case you just need to change to it too.

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That's what I was gonna say.  Sounds like you need to hit the triangle which will change you to the main gun from the secondary gun and vice versa.

Press Triangle.

you guys r saints,thx,i went to the options tab,but that stuff confused the heck out if me,but ill try this one 

triangle switch the fire easy