Well i am going to be starting work on my 148 scale german late war tanks however i can't figure out if the same colors would be used on both my panther,King Tiger and other tanks! Tamiya says the to use

TS-3 "Dark Yellow"
XF-61 "Dark Green"
XF-64 "Red Brown"

However im not sure if these colors would apply to all german late war tanks or just a Panther? Also i have noticed tamiya paints suck for brushing on to do the camo so does anyone have tips on how to get that effect? Also does camo have to match up line for line on each side of the tank or is free hand painting of it with different shapes and a bit of difference ok?

Kurt, I have to say that you will find answers to both parts of your post in this forum. There has been plenty written on those themes, that's for sure.

On the colours, the brief answer is yes, those colours could apply to all of your post '43 German tanks. The same colours were however used in a wide variety of paint schemes, so the only way to be sure to apply them in an authentic way would be to do some research looking at both original war time photos and colour representations where researchers have done the colour interpretation for you.

At the top of this forum is a pinned thread named "WW II German AFV Camo Datasheet/Timeline" which you should definitely take a look at.

On brushing with Tamiya acrylics, again, there are plenty of threads here, try typing in Tamiya brush into the search box at the top of the page, you will find threads like this:

Brushing Tamiya Acrylics?
Should i be thinning tamiya acrylic paint?
... and others too.

Essentially it doesn't brush paint easily, but you will find that using Tamiya's own thinner helps, as does an acrylic retarder, such as the Liquitex one discussed in the first of those threads. Note what is said in these threads about applying thinly, and not overbrushing, especially if the paint has started to dry - and that can be within a matter of seconds. Tamiya paints are good for airbrushing, and many of the German camo effects were indeed sprayed on, however, by no means all, and there are plenty of photos of schemes that were hand painted, or that had hard edges between the colours, and that are therefore suitable for hand painting.

When you talk about matching the camo up line for line on each side, not totally sure if this is what you mean, but certainly there is no need for exact symmetry. It is the case with some camo schemes however that the lines would meet up across the vehicle, and be balanced as it were, i.e. roughly equal amounts of the colours on each side, so that they appear to be continuous from the air, for example, but that doesn't necessarily mean symmetry as in a mirror image.

Again, you are best off researching this from photos of the vehicles you are intending to represent; did you already have some particular schemes in mind for your builds?

In all honesty i am going with no Specific tank i simply want a generalized display model of each type so i was trying to figure out the typical paint schemes and camo application. For air brushing german camo do people generally just mask off the rest of the tank or set there air brush to its lowest spray area and hope for the best?

Some late camo jobs, especially 'ambush' schemes, were masked and done in the factory. Most camo jobs throughout the earlier part of the war were field applied and done by hand either by brush, brooms, rags, etc., or sprayed (some German tanks came equipped with a spray gun and ran off the vehicle's compressor. So you could go with masking or free-hand. Some early 'ambush' schemes appear to be field done and look like the late 3-color camo, sprayed free-hand, with contrasting dots applied. All this is applicable starting from late summer/early fall 1944. New orders in late 1944 was that Tigers and Panthers should be base colored green in the factories and were usually seen with dark yellow as a secondary color. I don't know if this applied to the production of Pz lV's and StuG's though.