1. Respect actually meaning something
What i mean is that there should be an option to toggle the 'Respect +' when you pass the mission. Seems useless,but it can help a lot in storylines. For example,you are making a Gang-War themed storyline and when you pass a mission there you get respect from others so you can do extra stuff (see the idea below).
2.Optional activities in storylines.
What i mean is that there should be optional missions (you can continue the storyline without completing them) or missions that require certain respect.
BONUS: In a storyline it would be nice to set in between which times you can start the mission. Can be good for missions only at night,or missions only at day. (This one is just to add some extra realism)
3.Phone calls in between the missions
Yes,still talking about storylines. You should be able to get phone calls when not on a mission. This could be useful for some situations...
When in a mission at some point you would be given a choice. Press Y and the mission goes on,but if you press N an alternative way is unlocked (which can give phone calls in between missions some variation)
5.Why did i fail the damn mission text
When you fail a mission there should be a text saying why did you fail it. No im not asking to set your own text,but sometimes i bug my missions and random fails appear. It would be nice if the text told you for example:
-A car having 'Must Survive' flag enabled would say 'An important car has been destroyed'
-Same as above but with actor would say 'A important person has died!' or 'A important person is history'
6.Going away driver flag
This one is good when you want to kill someone and they are scared of you or something similar.
This basically makes an actor drive a car AWAY from the player,by any means necessary.
Which can add another flag 'Can Escape' which means that if the actor is too far away from the player the mission would fail because the actor escaped. (The actor has to be an objective actor for that flag)
7.Get out of the car flag
When you enter an objective car (without Must Destroy flag on) you can't get out of it until mission is passed. Well it would be very good if when reaching a checkpoint you can set another flag 'Ignore car objective' which will basically let the player continue without the vehicle.
Makes the mission unfailable even if you die,an 'Must Survive' car/actor dies/gets destroyed or even if the whole mission is ruined.This could bug most missions because doing too much might get the mission unpassable (if the end objective is a car or an actor)
9.Custom Animation Cutscenes
Im 100% sure this wont get added,but screw it!
This feature would give the designer's ability to make a custom animation in their cutscenes. This would be so useful it would make all (professional) missions/storylines/megapacks feel like a whole new game or even a sequal to GTA: San Andreas.
10.The Damn Train
Spawn a train whenever you want in the mission.
(This might be already possible,someone correct me if im wrong)