hmm...my gameplay is pretty similar,if not the same,depending wether im alone or not
i know i cant survive waves 9+ with my current damage reduction,so the globe is a choice if im alone+ damage and energy powerups. In all weapons-rocket,flak,mine... link spread inf and energy... no retention,since im alone
and then i globe
if im not alone then 1. i may not get the globe at all 2. i cant use necro combo to fill me up with adren when i come low to 100...cause most likely someone's dead,and ill raise-spend all adren...
so i load retentions,energy,and instead of damage i put protection. Specially usefull with flak or mine,since you can shoot over walls etc...
with 5 protection i get 50% less dmg,and the monsters are ajusted to the weakest level player,so i can survive till wave 12, 13 most of the time without too much hit n run. But after that it takes a lot of teleporting to stay alive,despite 5 protection...
p.s. in nali-waves its better to kill them with lightning rod,because they have low health
but in later waves lightning becomes pretty useless...but tripple dmg never does