Meltdown: The biggest problem i see with this is that smaller, mobile characters are leagues better then the slower bulky characters in this game. First off there is just way to much things to get clipped on through out this entire map (maybe this point will go away with more maps but for now it is an issue). Not only that but not being able to easily jump over minions or that there are long lines of sight to get out of and your a big target. You need to be always running around repairing your turret, collecting crystals and spawning guys what makes a slower character (mostly bigger characters) have a disadvantage in this game mode. My last point being good team work is often needed to win this but usually the fastest team to clear one side and jump to the other or pretty much just having more bodies in a quickly started team fight usually leads to victory. Now with slower characters it becomes harder to keep up in these very fast pace and mobile conflicts. That is just my two cents about it.
Incursion: There are just to many things in this mode that leads to snowballing. Building turrets in enemy territory, having access to all the mercenary camps and shard crystals once you kill the first bot. It feels like it was done intentionally because otherwise the games could take forever. With score tie breaking being the worst loss you can get. Big and slower models really shine here because they have a safer point to retreat to and stay at making their speed less of an issue.
Story Mode: I all around liked, i did not get to experience any advance difficulties, could you even do that in a random group? I never noticed the option other then in private play, is that going to change in the actual game? I really liked how you get more loot in this mode what will encourage me to play it more. I wish getting better scores would add more loot packs or something cool.
