<p>Zona Tres Upload is remarked by some players to be the hardest mission in the game due to the situation </p><p>But in general the transmitter ones are fairly hard </p>

<p>I have completed zona tres upload once and it was really hard but I stole a chopper and completed it.  I can't complete robotica raid though because they call in every drone in the base. </p>

<p>That one is not too hard </p><p>Is the AA gun hard to control or something? That's the only practical weapon to use against them </p>

I didn't know there was a AA gun I was trying to shoot them with the helicopter but was missing

<p>Yeah, helicopters are very hard to fly in Just Cause 4. They're so unstable. If enemy helicopters start giving you trouble, use the grappler to retract them to the ground. Bigger helicopters may take multiple cables. </p>

<p>While that's useful </p><p>Usually hijacking does the trick </p>

<p>Yeah, the bigger ones are better to hijack. Smaller ones, like the Firebrand Scout Chopper are faster to grapple. </p>

<p>E.g. Bloodhound Siege Heli (page unmade) </p>

I stil can't finish it I think my game might be bugged or something the health goes down so fast