Yes there are three that i know of:

1. REQUIRMENTS: At least one betty, Two weapons, At least 5200 points.
In Der Riese, when you put your weapon in the pack a punch machine, immediately turn around and go down the stairs and buy a Kar98K. Now run back to the PAP machine, this is the tricky bit.
Press right on the d-pad to get out a betty, then as soon as you see the fuse on it hold X or Square this should now give you a kar, your upgraded weapon and your other weapon. You can trade the kar for any other weapon but if you wish to upgrade all three then you ust repeat the glitch to get three upgraded and one not.

2. REQUIRMENTS: Two Bettys, Two weapons, Enough points to buy a perk and then buy a weapon.
Go to a perk machine and stick down your first betty, then whilst sticking down you third betty (with timing approxiamtely the same as glitch 1^^) buy the perk. This should leave you with no weapon. Go and buy a weapon.

3. REQUIRMENTS: At least three players, At least one grenade between you, Enough points for weapon.

Two players down themselves and look at each other. The player that is going to be revived first must hold X or Square. The alive player must revive this person and when he stands up (whilst holding X or Square still) he should revive the other downed player. This will leave him with no gun. Go and buy a weapon.

For all of these glitches to work you must not fire, knife or press Y or Triangle whilst with no weapon.

I hope these helped :arrow:

Yeah The Betty One For All The Perks

i tried the betty/perk machine one and it didnt work on der reise