I am just getting into painting transformers I was wondering how you do the paint damage and how to do battle damage on on the figures

Thank you for checking out my TF tutorial. This tut is probably around 5 years old when maybe only a handful of people were customizing TFs, so this many years later there are several new things that should be added to it. I'm sure by now there are plenty of step by step pic tuts, but an equal amount of step by step video tuts. As such I would suggest looking up some of those or really as much as you can find cause it all can help even if there's just a little bit of newer information to learn on each one. Anyways onto your questions, here's some quick pointers:

Paint Damage: For a beginner, using the drybrush method would be effective for this. Silver(s) will be the ideal color for this of course and once you have your brush ready, go around certain edges of the figure and spots where you believe it would have taken wear or want it to have wear. Use liberally.
**Generally this paint damage step is administered once the figure is nearly or fully painted as it should look once its done or about done. It should nearly be the final paint step(s) once the figure is assembled.

Battle Damage: I don't do a whole lot of this to my TF customs, but you will generally need some sort of dremmel tool. You can do this when the figure is disassembled, but to make the figure as a whole more streamlined in the damage aspect I'd suggest adding the damage to the figure before it is taken apart. Since TFs are so diverse in scale and transformation methods, depending on what you are working on will really be up to you. Just be sure not to interfere with the transformation method when using the dremmel. A lot of careful planning goes a long ways.

Of course you can combine these methods which is generally the case. If you've done the "battle damage" to the figure then of course you have to also incorporate the "paint damage" effects. However, you can do "paint damage" effects without having to use a dremmel thereby not having to incorporate the "battle damage" effect.

All in all though when it's all said and done, it really boils down to the individual choosing what methods really work for them. I hope these quick pointers help you out.