Sega model 2 mouse doesn't work for some games

[Franco 38]

Guys, thank you again for your help earlier. I can play house of dead, and virtua cop fine with the mouse, but for gun blade and behind enemy lines, the mouse moves, i hear the sound of the gun but the ame does not fire any bullets. Can anybody confirm these games work ? Thanks again!!

[BadMouth]

Guys, thank you again for your help earlier. I can play house of dead, and virtua cop fine with the mouse, but for gun blade and behind enemy lines, the mouse moves, i hear the sound of the gun but the ame does not fire any bullets. Can anybody confirm these games work ? Thanks again!!

The gun needs calibrated in the service menu of the game.
After the game is launched, use whatever buttons you mapped to Service and Test to navigate to the game's calibration screen.

[Franco 38]

Well, i am using the mouse to control and the mouse's left button to fire (and right to reload on house of dead). But on gun blade and behind enemy lines, everything seems fine, i even see the crosshair and hear the gun firing, but nothing happens, i keep shooting at enemies in front of me but the game doesnt "fire" even though i hear it.

[BadMouth]

Well, i am using the mouse to control and the mouse's left button to fire (and right to reload on house of dead). But on gun blade and behind enemy lines, everything seems fine, i even see the crosshair and hear the gun firing, but nothing happens, i keep shooting at enemies in front of me but the game doesnt "fire" even though i hear it.

There is the crosshair put there by model 2 (red or blue) and the game's actual crosshair (huge and yellow for gunblade).
The bullets go where the big yellow crosshairs are. 
I seem to recall the y axis being reversed for Gunblade too and having to do something to change it.
After you calibrate it in the service menu, both the fake model 2 crosshair and original yellow one should be together.