My tip right now is that the game is about to get an update. Wait about another 24 hours before playing.
Also, use this link to create a character: https://dust514.com/recruit/OWOEo1/
It gives you a free Assault Rifle that's a little better than the Militia version, and a skill point booster. There are also some extra unlockables that you can earn by gaining War Points (WP) on that character.
It's nothing too ridiculous, but free infinite-use items are always nice, so why not?
The new match making is a joke. I haven't been in a match with 2 full teams since the update and most of them are still one sided. I was in a 16 vs 1 match, so exciting. Squad deployment is completely broken. I haven't had a full squad deployed in a match since the update because 1 or 2 people always get left in their quarters now. They made the game scrub friendly with the aim assist + crazy hit detection + not being able to see people until they're right on top of you. Any noob with a militia AR can kill a proto from behind before the proto can turn around. I've seen it happen. Swarm Launchers got a super buff. They absolutely rape HAVs, making tanks almost worthless. You can still AFK. You can still run people over with LAVs. Have YOU played the game recently?