You have almost the same things I have, except Big Buddy.
My regular Loadout:
Secret Forces Rifle
Alien Blaster Up2 (I'm really not sure with my regular loadout, it's just what I use most.)
Dark Force Saber Up2
Portable Death Moon Up2(Or high voltage up2)
Solar Power Cannon Up2
If you do the suicide method, it is. The problem is that is has slow fire rate, slow reload, slow mobility, and slow bullet speed. My SPC also has way bigger splash damage, and I'm a huge fan of those weapons, like this and Anti-Grav.