There is a way that you don't have to waste so much ammo in the begining and eventually run out. By shooting the Los Ganados in the head or legs, and then running up and kicking them or knifing them, you save lots of ammo, plus you can do it to multiple enemies.

Theres a way that you can make your weapons more powerful than they can be. If you level up everything on a weapon to max, the merchant will give you an "Exclusive" option. This gives the weapon an extra boost to one of it's attributes. Heres what I found out:

Blacktail: power up to 4.8
Semi-auto rifle: firing speed to 0.8
TMP: power up to 1.8
Striker: ammo up to 100
Matilda: ammo up to 100
Mine Thrower: Makes darts home in and have a bigger blast radius

Thats what I know. The rest is up to you to find out. Play with the weapons a little. You might find something useful about those stupind wimpy guns you found in the beginning.

To obtain new controls you'll need a classic controller/gamecube controller
1.start the game as normal
2.while the game is loading take out the nunchuk and replace it with the classic controller/gamecube control
3.voila new controls which are easier for sniping

For the hidden videos (actually trailer, I think)
Remain idle at the main menu to activate the video OR press be to get a different video

HAPPY CHEATING!!!

How do ashley and leon get out of the castle