New player joining the war

[Rykow]

Hey all, just joined up...at now nearly 40 years I still remember when this game released in it´s original version. I played it a bit back then, of course used to play orkz as they were my faction in the TT too.
Stumbled upon this game now by accident, but it filled a void that wasn´t really filled by most current games. So right now I am a little unsure what to play or which side to join. In previous mmos i usualy played healers, sometimes tanks, but not sure yet. Looking through some video guides to get a feeling for classes an how viable they are at the end, any recommendations are welcome