Missions?

[The Crazy Gringo]

How do I activate missions in this game? I've completed 5/6 already and I'm still very much at the start of the game, but find myself wandering around with no clear objective.
Edit
I don't see any missions having killed LaYuri and El Polito in Itacua, but I believe I'm supposed to find the next mission in Montuyoc.

[Le John]

Look for the intel symbols. If I remember correctly you need to get to these first to unlock region missions

[The Crazy Gringo]

Cheers, I'll give that a go!

[Daemoc]

Mission order, or province order, does not matter.

As Le John said, you need to find mission intel to unlock missions. The mission intel looks like a yellow folder on the map.

Just pick a province and fly\drive around, you will find some.