Looks to me that the halftone effect is the product of outputting film for the printed piece. That's not to say it can't be replicated in Photoshop or Illustrator... I don't have X3 on this computer to see if there's a halftone effect, but I'd guess there is...
Anyway, in Photoshop, set whatever you want for your document size and resolution --- the higher the resolution the better the dots turn out. The samples I've attached were 5.5" x 8" @ 300 dpi in the RGB Color Space.
By your sample, I typed the phrase "TA" and made it light gray (fig. 1 - PMS 428).
SAVE (.PSD)
Then: On your type layer with the type highlighted - Layer >Type >Make Work Path
Then: In the Paths Palette >Make Selection (Window>Paths)
If you didn't save as instructed in step 2 --- SAVE NOW
Then: In the Layers Palette >New Layer (Window>Layers)
*Turn off your Type Layer at some point... ummmm, like now. It needs to be off for this plan to come together by the end - the following figures are with the Type Layer off.*
Fill the selection with a Black to Transparent to Black gradation. (fig. 2)
Bevel that selection to the best of your beveling abilities --- I don't know how to bevel so I faked it. (fig. 3)
Then: Image> Mode >Grayscale (Merge-Yes, your Type Layer will disappear -You saved the file as instructed in step 2, right? ...it's part of the plan)
Then: Image >Mode >Bitmap --- "Flatten Layers" - OK
POP-UP MENU/Warning Adobe Photoshop: Input should read 300 pixels/inch - Output: >300 pixels/inch - Use: Halftone Screen - OK
POP-UP MENU/Bitmap: Frequency: >16 (or your choice for best effect) - Angle: 45 - Shape: Round - OK (fig. 4)
SAVE AS: Format: Photoshop EPS (This is to make the white transparent so that you can overlay it on your colored background)
POP-UP MENU/EPS Options: Whatever the defaults are but make sure that the "TRANSPARENT WHITES" IS CHECKED - OK.
Then: Either Close the File and open your previously saved .PSD version or go back in your History Palette to when you saved the file in step 2.
With your original type layer selected (from step 1) >Select >All
Then: File >Place your EPS file: xxx.eps >Enter Key - That should appear on a new layer.
Then: Create a New Layer below your Type Layer and do that other stuff... (fig. 5)
For more on this type of effect, see
Halftone shadow........., a thread at Signs101.