battlefield-4
On some maps where there are lifts (e.g. Hainan Resort), is it possible to call the lift down to your floor?
I'm wondering if the lift automatically returns to the original floor after it has used by a player (i.e. a player getting in then activating the button), or you can call the lift to different floors (e.g. on Hainan Resort there are lifts on the first level but you can't seem to enter on them, unless I've missed something, hence my question).
Those are your "Field Upgrades" you can unlock and earn many different upgrades which you can switch out like a kit. Each one has 4 levels of perks that they give. Each bar is a new perk. As you fill up your bar, you unlock more perks. You'll see in that screenshot they have unlocked 1 of 4 of their perks currently.
Your best bet is to choose perks that align with your play style and stick to your squad. By getting squad points you unlock them all pretty fast in a game. Also you should always have (preferably your squad leader) in the back where they likely will not be killed. Your squad leader should also make sure they are issuing orders on points to get tons of bonus points.
The possible Field Upgrades are:
All taken from here where you can also get more information!
At this time (29th November 2013) this functions is not implemented. You can invite your friends to a server and when they join the game will try to balance you into the same team and same squad.
Best Answer
They cannot be "called" because they don't have a position! The elevators are open at both ends simultaneously.
When a button is pressed, the doors close on both ends at the same time, and it swap-teleports players (if any) within the top-room with players (if any) in the bottom-room, opening the doors (for both rooms) when it is done. Neither room moves, it simply uses some visual tricks to imply movement.
This means that two players can both be riding an elevator up/down and never see one-another because they keep switching spots.