Question about Behind the Curtain mission

[MotorexGTR32]

I finished A Wrench in the Works, Empty Spaces, and The Enemy of my Enemy and the requirements of unlocking 3 main missions above including Science of Deduction.

Behind the Curtain mission shown up after I finished The Enemy of My Enemy.

My question is should I finish the remaining of main missions from all warboards before Behind the Curtain or I go ahead do Behind the Curtain first? Because from what I read a log of Behind the Curtain, it sounds like it’s a last main mission?

Now I have two achievements related to Rise of the Phoenix (Behind the Curtain) and It’s The Final Countdown (Complete all Warboard Missions).

This is what I have left as you can see screenshots above.

Farmlands Region
-Flying Blind

Forest Region
-The Gas Factory
-Flying Objects

Marshlands Region
-The Bridge

North Coast
-Behind the Curtain

Does it matter to do all main missions in order or not for complete all Warboards missions for Its The Final Countdown?

[Zesiir]

Your other missions will remain if you choose to complete the main story mission, so don’t worry

[MotorexGTR32]

Yes I know about side missions that it will be there after I finish all main missions but my question is can I go ahead finish the final mission (Behind the Curtain) before 4 other main missions?

[Zesiir]

Yeah, shouldn’t be any problems.

[MotorexGTR32]

Ok thank you, Xezr