wep_xm8 help

i found the wep of the xm8 on a text search and i wanna enable it so i can use the xm8 WHICH IS in this game. Can someone make a me a code that can do this or a gamesave or something? I think the xm8 IS in the game and is playable.

heres the address I found:
0x007556d9 and it saids on the text side= wep_xm8..M8

and

0x0073E29A and it saids(the description of the gun) the M8.is.a.prototype.next-generation.assult.rifle...and etc.

Now just search the 416 and the address is 0x00669C34 and just change the hk416.416.text to xm8......._Improved but wen i did it it said that there was no gun there. so idk