Scorpio turret missiles not firing

I am enjoying Borderlands remastered on the PS4. I am playing as Roland and I have the infantry guided missile upgrade, but when I deploy the turret it only shoots bullets, there are no missiles being fired.

Is this a bug or am I doing something wrong?

Nope, my mistake. I must have had Borderlands 2 missiles in mind and was excepting something like that. Yes there are missiles, its just a little hard to spot them.