TheVision wrote:
What are the other 3? I started upgrading the plasma rifle last night based on this thread.
That's useful, but maybe not so much later game.
The ones I found the most useful were (in order from most useful) super shotgun upgrade path, chain gun turret, homing rocket cluster and zoom gauss gun. (the other gauss gun upgrade could arguably be more useful, but I didn't get on too well with it)
For the other weapons, I'd go for explodey shotgun, micro missiles on the assault rifle, the heat blast on the plasma rifle, and not wasting a single point on the shit pistol.
It's also worth noting that my play style is very much dancing up in enemies faces with the super shotgun, much as it was in the original Doom, so if you prefer to keep a distance... Super shotgun upgrade is less useful.