Migs Mayfeld Gunner + Tie Heavy

[Yandros]

Can a Tie Heavy (Lyttan Dree) shoot twice (cannon + primary) if equipped with any cannon + Migs Mayfeld?

[AMG_Plummer]

No, not with an equipped cannon, though there are other means to make this work.

For example, the TIE/rb doesn't have a native Front Arc, and any cannon with a Front Arc restriction gets treated as a Turret Arc instead. 
Because of this, cards that reference a "Front Arc attack" such as Outmaneuver and Migs Mayfield wouldn't work with an equipped cannon.

However, a TIE/rb with the Snap Shot talent equipped WOULD meet the requirements of Outmaneuver and Migs Mayfeld.
*edited on 22/02/23 - Updated reply and added clarification*