Here is something that I've been messing with offline.

Code:
#TELEPORT NADES [DMA]
;cheat/hz 15
;z3r0
0xFFFFFFFF 0x00491E38
0x00002C3C 0x00000000
0x00002C40 0x00000000
0x00002C44 0x00000000
If you want your grenades to teleport to a certain location then just throw it to whatever location you are at and write the three coordinates down. Then copy them to the code. (To get the location, just follow the pointer+offset)