Well NOT refering to any fps where bullet spam is the best all round tactic. Before i continue, Snipers lining up for that perfect one shot kill? you target just stepped back around that corner he came out of, and theres someone behind you with a shotgun and doesnt look too friendly.
Back to my point, this is more easily applied to RTS games where the brute force is a about 50 late game tanks or equivalent, and fine percison is a commando unit and maybe a few supports snuck in on an APC through a hole in your foes defecnes.
Ive seen and pulled off both of the above and theyre both equally satisfying, but fine percision is much easier to start with mostly because you can make the units quicker and it costs much less. The brute force method is a more absolute method but it takes alot of time and cash to biuld up the tanks and theres a fair chance your foe will find out and do something about it, probably with a well placed nuke.
Best is usually a combo of both, have the brute force on an attack move into your victims base, his attention will be focused there now, punch a hole in his defences on another side then add some specialised anti-biulding units and take down the base while hes distracted.