If the Mission requires stealth I'll use it to try and complete without any casualties, makes the game a slightly harder challenge.
but I just love picking off the bad guys with silenced weapons one by one, seeing how far I can get without being detected.
on my second "play through" (see note below) I completed all missions available, prior to the heist (including paying back Vik).
allowed me to upgrade my character, to make the heist more enjoyable .
(as second play through i mean i abandoned the current progress of my character (15 hours in)...
I suppose the game is what you make of it..
I myself have over 350hrs in Game, have seen all of the endings (including the save / not save Takemura variations)
only have 1 Achievement left to get in game (the 30 Quickhacks one).
the second run-through of the heist was far more enjoyable than...
With the amount of armor my character has on this (modded save) play-though (yes, you can mod Armadillos to Legendary status with a 270 rating on each) and the serious damage my weapons output (plus the burn stat is applied, so if i shoot them with the SMG more than twice they start burning)...
Easy if you use the Legendary cyberware that reboots optics when spotted (on successful breach protocol). just had to take down one guard and short circuit one droid (and disabled the turrets as well)
I'm running a stealth build and trying to do all of the missions with as little or no deaths...
You can do all of the available missions & NCPD gigs in the area, before running the heist..
This normally puts you @ lvl 14-15 with Vik paid back and better cyberware (which makes the heist far more fun).