Destructor & Cannonballer: Build Help + Other Tips

I'm looking for some build ideas in order to make better use of Cannonballer & Destructor. While some ideas were already mentioned in a another thread, I'm looking for specific stuff that best suits them both. Here are some things I'm considering:

Cannonballer: get B rank Sway & Wall Jump with C rank Tower DEF, but not sure about the other C grade cart.

Destructor: change 1 of his arms to hold a bazooka (maybe the one from shop that costs Rt), B rank Wall Jump & C rank Tower DEF

I also need some tips on how to utilize Destructor's subweapon missile besides hitting the enemy tower. Other advice in using these busters better is greatly appreciated.


Here's the thread I'm talking about that mentioned other ideas:
http://www.cosmicbreakfanforum.com/t15908-busters

What's the other C grade cart on your baller? Doing good so far.

Large Zook Mod from shop is a superior choice for close-ranged defense. His sub missiles are mostly only used for towers, unless you happen to see a few enemies huddling together in another place. Either way, always look for spots with at least 3 enemies in your circle radius.

I have no clue what other C rank cartridge to give my 'Baller. As for Destructor, I'm not sure if it's better to make a smaller profile or stay big to tank some hits.

If you don't have sway on him it doesn't matter how fat or tiny you are because you're gonna be noticed by melees.