It's quite obvious that you have no idea of what you're talking about, and you show that.
You most probably played the game for a couple of hours, got butthurt because you kept dying even if you're "good" at CoD and TF2, and ragequitted.
Let me get this straight: your experience in other FPS is worth JACK in Tribes. Being a CoD player hurts you more than helping you, and usually makes Tribes players laugh their head off while they look at you running around instead of skiing, before blowing you up.
Throw your ego out of the window. Your skill is worth less than zero in Tribes.
If anyone thinks of playing Tribes for the first time and start "owning" people with their "l33t skillz" from Call of Duty, prepare to get your ass handed to you on a silver platter. If you have no experience with Tribes games, consider yourself a Noob.
Accept that, prepare yourself to get killed. Then you'll be able to improve.
Every class has a role, and is extremely good at what it does.
A Doombringer isn't supposed to go around trying to kill people. A Doombringer is a defensive class, that stays at a distance usually defending the base, blowing vehicles up and shooting people out of the sky.
That's your role. Play it in another way, and you're playing it wrong.
A Technician role is to repair the base and defend the generator. Alone in the field it's cannon fodder. Your turrets are EXTREMELY useful, if you don't place them outside in plain view. The Technician works indoors for the most part, that is your place.
The Infiltrator is a class made to destroy enemy bases. In normal combat you're less than exceptional. Your job is to infilitrate the enemy base, blow up their defenses, and kill any Technician that tries to defend and repair them.
A Sentinel's job is to kill light classes from far away thanks to their Sniper Rifle. As with almost every weapon in Tribes, the Sniper rifle isn't hitscan, so you have to practice and shoot where your target will be when your shot lands. Also you can't "quickscope" with it, you need to stay in zoom for a while for your shots to do maximum damage. Using the Sniper takes some ACTUAL skill. Throw your CoD experiences with it out of the window.
And so on. Every class has its role in each mode and every class is absolutely necessary to win a game.
Learn the classes, learn their roles, learn how to play them.
Then you'll be good at Tribes, and you'll get more enjoyment out of it than with any other game.
But most importantly, when playing Tribes you have to learn some bloody teamplay. Again, this isn't CoD. And Thank God for that.
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