Credit To : E Nellie From S7



Needed:
Xextool 5.2 (Xorloser)
Xorloser's PPC Altivec plugin v1.6 for IDA v5.6
IDA
Hex editor
Black Ops xex

[spoiler]

1. Make sure you have xextool and the black ops xex in the same folder.

2. Shift and right click to "Open command window here"

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3. Type the below command shown in the picture changing "blop.exe/blop.xex" to whatever you named your xex

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4. You have now extracted the basefile from the xex and created an idc file used to analyze the basefile as code. Below is shown where to load in IDA

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5. Drag your basefile (.exe) into IDA, this needs to be loaded as a binary using the PPC processor setting.

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6. Use the addresses referenced by Xextool load your basefile.

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7. Select OK. Then File>IDC file. Select the idc file created by Xextool. Select Yes analyze as code.

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8. Find the string for the Dvars that you want to change *those that have floats* and find the corresponding hex bytes in Hexview

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9. Open your basefile in a hex editor search for the exact hex bytes then change them to your wanted values.

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10. Now, open your xex *note the actual xex* in hex editor and search for where the executable actually begins, search for the exact ansi string "MZ" and replace your modded basefile *which starts with MZ* over the Xex

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[/spoiler]

Then load your xex on your Jtag and your replaced values should be reflected in the game...the above example will make your player have 0 friction *slides around the map* although with changing different floats comes different effects.

EDIT: I would have uploaded a video of the friction effect, but it would have been taken down swiftly if you'd like a video I could upload to MU post below if you would like this.

EDIT2: Also, be aware that editing floating point values is not the only way the xex can be modded...I will add more later.