Well, I've now made a self moc, Scorzen (link: http://board.ttvpodcast.com/t/scorps-moc-topic/4670/17), which has changed a few things.
Scorzen is a toa of sonics, mainly because I prefer a quiet, peaceful environment. However, I also enjoy making music, so he's a musician first and Toa-hero second. His mask is currently a great Matatu, but I might replace it with a non-mutated great Crast at some point. As far as weapons go, he's got several, but his main weapon is usually a Sonitone, a sonic blaster that, with small modifications, doubles as an instrument, with two pistols as secondary weapons.
I named him Scorzen because I wanted to preserve some of my username, but Toa Scorpion_Strike didn't sound right.