Merits
Be aware of the system. Merits give you credits and also allows you to proceed to the next level. Most level need 10 merits to move on to the next.
Finishing a match 1 merit, winning 1 merit, leveling something 1 merit (so playing multiple guns, titans and pilots as oppose to sticking to your favorite allows you to level faster)
Titan fall networks
There are number of them. It's kind of like a clan. When you play as part of the network you can get some Bonus stuff that is mainly cosmetic but the network will determine the Happy hour time
Happy Hour
It's one hour where if you finish a match and play half decent you get 5 merits (so half a level). This is pretty useful if you can get on everyday and play to level up a bit faster.
Your boost and abilities can be useful depending on game mode
For instance putting an anti pilot sentry by the bank at the right time during bounty hunt it slimy and cheap but effective. On the other hand you probably want to have a pulse blade Tactical when playing that mode in order to be aware of the campers and sentries when playing that mode.
Anti Titan
I play with the mag grenade launcher which is effective against a number of AI as well. I don't agree with the above that it isn't effective. It's super effective to help another Titan take down a Titan. Get behind the enemy Titan and spam those grenades. Just be careful when you kill the Titan. If it is equipped the that Nuclear ejection core you do not want to be close and die
If a Titan drops on an enemy Titan it kills it
It's Dam funny and satisfying to do that to a Titan that wasn't moving for some reason.
If you use you Nuclear eject well you can take out a number of titans if they had you pin.
It's a desperate measure but Boost towards those Titans and eject you might take them out too. I lost a game once were I guys did that. 3 of us had him pinned. We took him out but he took all 3 of us out. Brilliant play
Getting into you Titan
Be aware of the map. You Titan will come down facing you. So if you were looking at an enemy Titan at the time, his back is facing that Titan
You can spawn in you Titan if you already earn him. It's not a way to do thing. You get to finish a gun fight and if you lose you come down in your Titan with minimal risk