OK, so below a tanker's name, but above the tank is a line of active items, supplies, and the overdrive star, but occasionally, I see more unusual ones. One I've seen looks like a fragmented shield, which I imagine symbolized that they have a protection module active (against my turret). Another is what looks like a double speed boost, a yellow double arrow up, that is in addition to the normal speed boost arrow. I believe I've seen more, but those are the only two I remember at the moment. My questions are: What are they? How does one come to obtain these particular modifications? Is there a web-page somewhere that details all of these symbols?