First off, you'll want to get the following two programs:

Finalbig - Finalbig is used for extracting, importing and making new .Big files, it is not possible to mod generals without it.
Notepad++ - This one is not necessary but i would strongly suggest getting it, as it makes the overall process easier and gives a better overview.




Now, to start out, we wanna launch Finalbig.


As you can see, not much is here yet. Now, you wanna go to 'File -> Open' This will take you to the browser window where you will have to select the .big file you wish to open.


Depending on the .Big file you wanna open, you have to go to one of two places. The following paths is where i assume the majority of you will find your Generals folders. (mine are totally different)

C&C Generals: C:\Program Files(x86)\EA Games\Command & Conquer(tm) Generals
C&C Generals Zero Hour: C:\Program Files(x86)\EA Games\Command & Conquer(tm) Generals Zero Hour

Navigate to either of these folders, depending on which INI achieve you are interested in. In this case, we want the Zero Hour variant of the HiJacker, so we will go for INIzh.big in the Zero Hour folder.


The next thing you wanna do, is scroll down till you find the files located in path 'Data/INI/object'
Now locate "GLAinfantry.ini" select the file, and press
'Edit -> Extract' You will now be prompted with another browser window. Navigate to your Zero Hour (Or Generals) folder, then open the folder named "Data" inside of it, create a new folder named "INI" and after one named "object"

You will then extract the GLAInfantry.ini file to this exact location, so it is inside of:
C&C Generals Zero Hour: C:\Program Files(x86)\EA Games\Command & Conquer(tm) Generals Zero Hour\Data\INI\object\


To explain why we put it there, look at the file paths in Finalbig, these are representative of where the game 'looks' for these files, usually from the root directory.

You also wanna extract the following file "AmericaInfantry.ini" as this is where we wish to add the Hijacker to. Extract it to the exact same location as you did with the GLAInfantry.ini.



Next up, you will have to find two files, one named "CommandSet.ini" the other "CommandButton.ini" both have the file path "Data/INI" this also means, when we do extract them, they go into our newly created INI folder within the Data folder of our respective game directory.



Again, you will extract these two said files to:
C&C Generals Zero Hour: C:\Program Files(x86)\EA Games\Command & Conquer(tm) Generals Zero Hour\Data\INI\

Now, it's time for the fun part! In case you followed my advice and got Notepad++ start it up, and navigate to your Data\INI folder within Zero Hour and drop over CommandSet.ini, CommandButton.ini, also GLAInfantry.ini and AmericaInfantry.ini located just one folder beneath inside of "object"



Select the GLAInfantry.ini document inside of Notepad++ and click 'Find -> find' a Search field will appear, type in "GLAInfantryHijacker" and make sure to search downwards.



Click search, hopefully the first thing that will come up is the Hijacker code. You will know its the start of his code due to the green line which indicates the start (or end) of a new unit.



Scroll to the bottom of his code, you will know when you are there, due to the green lines. Click just beside the text "END" scroll back up to the top, hold 'Shift' and click just behind the last green line. This will select the ENTIRE Hijacker code with no bits missing. Either, right click and press 'copy' or my personal favorite CTRL+C



Next up, go to the "AmericaInfantry.ini" document, scroll right down to the absolute bottom of it. (I tend to do this, as it is easier to locate recently added units)



Click just beneath "END" and press Enter, this will ensure order and not cause chaos.
Next up, right click and select paste, or CTRL+V this will insert your Hijacker code.
After such has been done, scroll back up, or use the search function to get back to the top of the Hijacker code.



Now, rename the Hijacker Object from "GLAInfantryHijacker" to... well whatever you want, for the sake of this tutorial i will keep it simple, so he will be "AmericaInfantryHijacker"



Further more, you may want to scroll down to where it says "Side = GLA" and change it to
"Side = America"



After you wanna scroll down (or search) to where it says "Prerequisites" you know you've found the right one when it says things such as "GLABarracks" and "GLAPalace"



All we wanna do here is change the Prerequisites, so that you can actually build him in an American barrack.
This is very simple to do right, you can either spent hours extracting all the US building ini files, or you can launch your Worldbuilder (located in the root of Generals Zero Hour)



Next up, select the "Place Object" tool in the top bar, a very self explanatory hierarchy of the different factions will pop up. Navigate to the faction of which buildings you wish to add to your prerequisites. In our case it would be: America->Structure->



Find the buildings you wish to add to the prerequisites, and simply note their name. In our case we want "AmericaBarracks" and "AmericaStrategyCenter"



Go back to Notepad++ and replace "GLABarracks" with "AmericaBarracks" and "GLAPalace" with "AmericaStrategyCenter" You also want to remove the whole line that says "Science = SCIENCE_Hijacker"



That will remove the requirement to have the promotion point for the Hijacker (Not available to US anyways)
Now we are done in these two files, so feel free to save them. (You may also close Worldbuilder incase you haven't done that already)

Next up, select the CommandButton.ini document.
As before, go to 'Find->find' and search for "GLAInfantryHijacker" correct result should be the first one that appears:



Now, select the entire text, and copy it like you did before.
And then scroll to the end of the document and paste it.



Now you wanna rename the appropriate names, in our case there is only two to rename.
The first which is "Command_ConstructGLAInfantryHijacker" rename it to "Command_ConstructAmericaInfantryHijacker"
The next one being "GLAInfantryHijacker" rename it "AmericaInfantryHijacker"
A little history on these two things, the first one Command_construct will be used as our button name entry for the CommandSet.ini file, the other one is the name of our Hijacker object, if you go back to when we pasted his code into the AmericaInfantry file, we named him "AmericaInfantryHijacker" So the same we should do here. (Or nothing will be build as it is not found)



Save the file, and move onto the last step, which is adding him to the CommandSet of the AmericaBarracks.
Head over to "CommandSet.ini"
'Find->find' and search for "AmericaBarracks" The first selected will be from the American Dozer command set, so you want to continue ONE more time, till you get this:



Now, copy the line "Command_ConstructAmericaInfantryPathfinder" click at the end of the same line, and press enter, this makes a space inbetween. Then paste the line as shown:



Change the number '4' to an open slot, in this case it would be '5' after, replace your newly copied line of "Command_ConstructAmericaInfantryPathfinder" with "Command_ConstructAmericaInfantryHijacker"



Save it, and you are done!

Here is the result:



As you can see, he appears, he is built, no problems.
If you however experience a crash while starting the game or he isn't built right, with no explanation or anything, here is my best suggestion - Launch Worldbuilder.
Example:



In this example we can see that we forgot a J in the word Object, Worldbuilder is good for finding errors like these, and i personally use it alot.

Now, if you were to add the hijacker to other factions, simply go over the steps again, but, instead of putting "America" you'd put the faction you are adding him for, i.e. SupW, Lazr, AirF.
Their .ini files are located along with the GLAinfantry.ini file, and often have self explanatory names, such as "SuperWeaponsGeneral.Ini", "LaserGeneral.ini" and "AirforceGeneral.ini"

For those interested, the entire Imgur achieve is here: http://imgur.com/a/R7XZc#1
Thank you for reading, i hope this tutorial was of any use. If you experience any problems, feel free to leave a question, or any kind of critic as to how i could of done this better.
It might be obvious that i don't do tutorials that often.

Edited by user Thursday, May 1, 2014 9:32:15 AM(UTC)  | Reason: Not specified

Its easyer to go into the file for the original unit and change the prerequisites eg: Object = glabarracks to object = glabarracks Americabarracks then go into command set and add the original command from gla barracks and copying it into us barracks

Two things first can you use [code=plain] and put your code in tags
Second use generals.csf for the text labels

Thanks, I did forget to change the objects name and as for the csf file I was using the save function but apparently it did not work so I used Save As and now it works but only thing is i get these weird squares in between sentences and where I pressed enter to make space between sentences.

Thanks for all your help I'm starting to get the idea how behaviors work.