Not much more complicated than keep playing it and grind it out until you get the best vehicles and upgrade them to beat the boss. Didn't take long at all, sort of wish this game was longer .
Halfway there worked for me...I hadn't played this game much before the quests came out, but it unlocked after I got over 1600m in one run (I think I had 1616m exactly when it triggered), not sure why it wouldn't unlock for anyone though, you'd hope the distance you achieve wouldn't be precise (Over halfway but less than 2/3 or something like that).
Tried it agian, one time i exit the run by lil over half... no sucess, second run i try it by letting my convoy get destroyed by halfway... no sucess...
You wouldn't think you'd have to restart, I mean I don't see any achievements in game, so it isn't like anything is really keeping track of your progress, especially for distance...then again it could be hidden, I don't know what else you could try though . At least getting over halfway won't take terribly long from scratch.
I just finished my second Quest "Halfway There"... it unlocked when I saw the unlocking of the "Bad Boy Bus", which unlocks when you drive for 1500 miles.
Could very well be that when you already played the game and have unlocked the "Bad Boy Bus", the game doesn't register the Quest being achieved. I think it is linked to the unlocking of that Bus as you get it for passing the halfway point... =)
Okay, any advice on convoy construction to make it to the end? I have all three trucks (final category) upgraded completely, and I can hardly make it past 2,000. Should one vehicle be a bus or something?
You could try replacing either the Booster or Ram truck with the Bad Boy bus, that one has a UAV Station like the Boss truck, so you can have 2 UAVs out at once, which helps a ton. Don't know if that makes the boss any easier though...I was able to do it with the three trucks, any enemy that throws explosives at you will do more damage, I prioritize those enemies over ones with guns.
My cars were in order from left to right: Ram, Booster, Bad Boy. Just get the UAV out asap and Always have one out. Then Just keep the gun low the rockets and such will take out air opponents. Then all you need to worry about is the rockets, Helicopters and the rest of the huge barrages.