How can you play a FPS shooter without using a keyboard and mouse?

Don't get me started on this tat - you're entering a world of pain! A
world in which I am the master and you are the gimp, locked away in
your box, choking on a rubber ball and wishing the pain in your arse
would disappear.

Yes, keyboard/mouse offers more precise control - hands down - no
contest. But once you master the intricacies of playing FPS with
analogue sticks you will find it opens up greater control
possibilities for other game modes.

More and more FPS's are branching out into much more than
'run-and'gun' style fragfests. As soon as you get a vehicle or
aircraft made available to you, then the keyboard/mouse combo goes to
shit. Using Warhawk as an example, depending on your style of play you
will spend about half your time airborne in dogfights or hooning
around in land based vehicles. The level of control the analogue
sticks give you is unparalleled (alright, a joystick/yoke might be
better, but if we are splurging on 3rd party confrollers here I can go
buy a PS3 mouse controller thing and make the argument moot).

It goes without saying, setting the stick sensitivity to 'bullshit'
will help, but you need to condition your thumbs - It takes a LOT of
playtime before you get it together, but in the end I suppose your
proficiency will be 80-90% of that with keyboard/mouse.

Another point to consider is you'd need a pretty beefy PC to play
these games at PS3 res. Plus you're into it and murdering your mates
30 seconds after flipping the 'on' switch. I think the convenience
more than makes up for the inferior control method.

Don't get me wrong, Unreal Tournament 3 for PS3 has native
keyboard/mouse support, and I'll be putting my G7 to good use. But on
the flipside, you should give these games a crack using the
controllers. Everyone has the same handicap (no bullshit laser mice
with on-the-fly 3000dpi switches to make headshots a breeze) and It
really is fun!

I'll never get the amount of headshots with the sixaxis I'd normally
get with a mouse - But I'll be drilling craters in your skull from the
other side of the map every time you move! - And in the end, isn't
that what matters ;)