The good news is that any race can be any class, no restrictions. It's all about what you want to play, so make something fun!
Swashbucklers have the ability to stealth, track, and attack from behind/flank/hidden. Additionally, you will have attacks linked to Thrown Weapons (axe, knife, etc). Rangers will be characterized with bows. You can also, but your attacks are linked to Thrown.
A typical way to attack is stealth, attack from behind, stun, leap behind and do a rear attack, repeat. It's a little coomplicated at first, but once you get a battle rythym set, it works like a charm.
Some of your attacks also have root, stun, mez, slow, haste (for you), and others.
You won't be able to stand toe-to-toe with a mob, as your armor will be limited. However, your fast attacks, stealth, and high damage will make sure the fight is fast.
If you are in a group, you might pull agro onto yourself due to the high DPS you are putting out. It will take some time to learn the right amoount of DPS and skills to use for the best benefit.
If you haven't picked a server yet, you might want to consider Najena. There are many folks of all level ranges there, plus a few from this board. When you get there, look me up. I can help you get started with some gear, directions, spells, and coin.
They can also be fun for roleplaying, doing the whole dashing pirate thing.
Good luck!