I've never played a match with vehicles. Maybe it's because I normally stick to free-for-all?
Yeah, I think I've really only played maps with vehicles in Control. This is also kinda funny because I really, really like the idea of Control (it's not about controlling the points in terms of winning, but rather controlling the points makes the kill multiplier go up for the team that controls the point - a very unique and somewhat genius differentiation from typical Domination) but it also has the maps with vehicles and the maps don't seem to support control points very well. So that's a very mixed bag and that's where I had the most trouble with Crucible.
Once I started playing Clash though, it started clicking. It was more fun just because the way the game is unbalanced makes it hard to focus on other objectives.
It's fun when people aren't spamming elemental guns, like the fire or electricity zappers. They're an insta-kill. Same with rocket launchers. They ruin it.
Yeah, the problem with Crucible is the balance of it ultimately. There are a lot of times where I die and I feel like it was something that I couldn't do differently to change that outcome during the battle itself.
Also, another thing missing from the Crucible that made Bungie one of my favorite developers is the multiplayer variety. To me, Halo was always like a party game -- it had modes for everything -- even goofy ones. The gameplay was mixed up a lot and I never felt like I had to play the exact same thing again and again because I had many, many options in a much more balanced environment.
I think it would have been better for Bungie to focus on two different types of loot: one for PVE and one for PVP. The PVE loot should be vastly different from other loot of the same type -- manufacturers of guns should handle differently, stats should vary widely, etc. whereas with the Crucible the armor and weapons should all be the same type but the loot gained would be stuff like shaders, different weapon skins, items that could let you customize the look of any gun (even PVE ones), Crucible marks could be used for PVE items from vendors, etc.
The guns though would have to be varied and unique in general though -- the Needler and the Assault Rifle in Halo satisfied people who wanted a unique weapon type and for people who wanted a regular type of weapon whereas all of Destiny's weapon types seem kinda samey and bland.
Lore wise they could just have one manufacturer who had the contract to produce the Crucible weapons -- it could even be whatever government was in charge who did it since the Crucible may even be a government sanctioned event. That also doesn't mean that they couldn't have an Iron Banner mode, but the main modes should be balanced with everyone at the same level in all aspects.