Little summary of the game itself:
Basically, it does not matter if you play Empire or Rebels, both factions are playing identical with the same weapons etc.
Before spawning, you can choose one of four weapons which will be your primary weapon. This weapon has unlimited ammo but overheats in auto-fire. Instead of a secondary weapon, you can choose a "hand" of 3 from 7 different "cards". The cards include grenades, a jetpack, a sniper rifle, a personal shield etc. The cards are special abilities that have a cooldown so there is no dedicated sniper (in fact, no classes at all) and not too much grenade spam.
In multiplayer, there are two types of matches. One is a big battle re-enacting the Battle of Hoth from Ep. V. You play 20 vs 20 on a rather large map with some "objectives".
The second type is a 8 vs 8 point control game. The map is small but not too small. Fighting is fast-paced and concentrates around the escape pods (i. e. control points).
In all maps there are power-ups which you can pick up. The power-ups include heavy grenades, proxy mines, orbital strikes (very powerful), blaster turrets (all battles). In Hoth you additionally can have: automated AV and AI turrets, flying fighter ships (X-Wing, TIE fighter etc), get an AT-ST, take control of an AT-AT for some time, or play as Darth Vader / Luke Skywalker. Flying is similar to Planetside 2 (at least in terms of me not being able to fly straight for more than 5 meters and others sniping infantry from a distance). You can only carry one power-up at a time and some have a time limit to be activated.