FieryMurphMan

Lot of you guys sound like experienced zombie/survial players. I just started playing survial mode and was curious if there are advantages/disadvantages to playing solo as opposed to co-op? For example do you think you'd level quicker if you played solo? (since you get all the kills and such)...or does the game throw less bots at you if you play solo as opposed to co-op? Thanks in advance for the tips