I was wondering what font is, even when I go in what the font there is not matching result, sounds like a custom one.
I think they're all the same, i don't see any difference, the only game in the series that had a different font was Project Titan.
looks like a custom job, found a link to a high res image of the logo if its any help, http://imageshack.us/f/144/logotxa.png/ Also tried messing with it in PS, thought it might yield better results with 'what the font', didn't find an exact match. Convoy Oblique has some similarities but certain characters are quite different. Convoy oblique
Back then, before everyone with a copy of photoshop and a font cd thought hes a designer, most logo work was custom. the designer seems to have started with a heavily slated bold helvetica for the "time", and then went very much custom in a simple way.
I don't think TS realizes a lot of logo's are custom done and don't use fonts. Font's only come around after a fan makes a replica font for it.
Tried here and it looks like a Helvetica indeed, with a 10 px stroke, except for the letters T and E. The C,R and S sounds like they came from a font, not sure why it always remember some kind of sport version logo of some car.
Most fonts are bought for game titles, or modified fonts from premium ones. I made my DOA 2 font with a bit of editing myself.