Never played the original version, but the fluid movement system (dunny up the wallsy!?
) is part of the attraction for me personally. Many other improvements have been made also, it’s a much better game for it.
Excalibur is definitely the most popular starter choice, as correctly modded is still strong at high level, but there’s nothing wrong with the other two starter frames either. You actually get a better version of Excalibur (Umbra) later on. Volt has great crowd control and can give speed boost to his team (movement and reload). Mag is the toughest to play when you only have starter mods and she’s a bit squishy, but she can shred bosses when you get the hang of her powers. Whoever you don’t pick you can acquire later.
Orbs is correct, unfortunately this isn’t cross platform. PC is usually one version ahead of consoles.
Setting up an Oldg clan dojo is a huge amount of work, and would take some dedication to research and provide the resources required. Although it would be very cool, just wanted to let you know it’s a lot of time/effort to do so.
If you need help with anything just shout.