You can go into cool for bonus damage against humanoids, extra crit chance plus armor and resistances. There is a nice synergy for a netrunner int + cool.What are some of the other attributes you guys invest in?
What are some cool skills in other trees that help?
Other option is optimizing Short Circuit legendary passive effect - every crit hit applies base Short Circuit effect (lots of damage). This is really good with fast fire rate weapons or with shotguns (currently due to lack of balance it makes even a starting level pistol one-shot anyone on crit due to ~20K extra damage that passive effect gives).
Shotguns are in body and don't need that much body to get the good perks (faster movement, faster reload). If you already have cool and it speed perks then if hacking doesn't kill all you will be moving really fast and be able to flank or just rush enemies and hit them with a big shell (double barrel double shot shotguns are the coolest).
Fast fire rate - automatic pistols mostly. Buzzsaw is one of such weapons and aside of being broken OP on it own it's even more broken with ping - as Buzzsaw iconic effect is piercing shots - ignores cover like charged Tech weapon shots - so you ping and you can shoot all revealed enemies no matter the cover. And it can be silenced. Required 5 tech to craft, can benefit from reflexes perks but it's not necessary due to it power level.