User blog comment:Dragonzzilla/Mass Effect 3 Weapon Modifications/@comment-90.219.237.204-20120530161352

i also use the geth infiltrator as my charachter of choice, but to be able to maximise its capabilities i chose a single weapon( a sniper most likely 98 widow X) with piercing mod and extended barrel and having hunter mode 24/7 i also prefer not to fire unless im using tactical cloak so as to maximise damage.

to give you an idea of the power: lv 20 geth infiltrator+ widow X (piercing X, barrel X) + hunter mode and tactical cloak (both maxed damage upgrade) i can take down a brute in TWO NONSCOPED shots to the chest(or 1 scoped shot with armor piercing I)

btw geth infiltrator can battle very effectively at close range without a second weapon if you max out the melee damage you need simply run at your oponent, holf F and the geth explosion will work perfectly. best to run into a large group and heavy melee in the middle of them.