[Higby]

Originally Posted by Goku

Can you elaborate anymore then this?

One of the biggest unlock lines for mbt's are secondary weapon unlocks. You'll be able to switch out a variety of weapons up there that add a ton to your tank's situational viability. These will rival the power of the main guns depending on the vehicle and situation and will be a lot of fun to use. Imagine putting a mortar cannon on top of your vanguard, now you can sit behind cover and shell an area; or, add an AA Flak cannon for defending against reavers. There will be a lot of variation here and having a good secondary gunner will always be a major benefit.