Feorie, don't be afraid to strap on a bow and start raiding in GE. It doesn't matter if you lag or couldn't shoot to save your life. Most women in GE are like that
There's no requirement to be part of a sim to raid. People ask for help in Raid Groups and you can join in when you want. Only by raiding can you experience the fun and the rage-inducing-bullshit in builds.
My own thoughts on it are... you don't need to plan a build for GM combat. Sims with a real and natural aesthetic will work for Roleplay and they tend to work for raiding too. For instance, a US city layout with linear streets and blocks of housing make efficient use of space, but a representation of which on your sim makes for a dull and flat roleplay and raiding environment. Large open spaces tend to be chaotic for raids, you can have a group v group encounter, but you will want access to multiple avenues of escape.
A medieval style build with winding streets, multiple levels and erratic features overall will enhance the roleplaying and
raiding experience. BTB builds tend to be flat, rolling along a single level. Do not underestimate the potential of uneven terrain and multiple street levels through your city. The further your avatar can see, the smaller the sim feels. And when your vision is blocked by upper streets levels, forcing you to walk around and discover new parts of the city, the sim feels much, much larger.
All sims generally use the same settings:
2:1 ratio is standard for BTB. I personally commend any sim who takes it higher.
And then you have the optional:
1:1+1 ratio is amateurish for any location. Some BTB sims use it and still talk up their fighting skills!
These features are like training wheels on a bicycle, capable groups tend not to allow them. But most sims take from that list.
It's amusing in ways, but German GE sims tend to have the worst nightmarish builds you could imagine. Underground mazes, multiple fishbowls and the thrill of navigating your way along zig-zagged planks over shark infested waters, whilst being shot at! There is no danger of ruining your build unless you're really, really trying for something ridiculous which makes honest people rage.
And as Kismet said, if you intend to have ramparts and defenders shooting down on raiders at the gates. Then try firing up too, and be sure your mesh wall isn't blocking arrows. Very easy build mistake to make and some GE groups deliberately exploit it.