Indeed, what you believe and what is reality are completely different things, despite having other friends with the same beliefs.
I recall hearing that the damage dealt by everything is matched with GE007 (with the exceptions of Klobb, RC-P90 and Auto-Shotty to compensate), so I don't see how killing things is more difficult due to the MOD itself. I would say it's more along the lines of how well you're controlling your own gun with a keyboard and mouse, as well as new environments, and perhaps even different tactics in the PC atmosphere.
That, or if you haven't played GE007 in a long time, your memory could just be kicking your ass.
I also don't know where you get the idea that the MOD is even remotely dead, what with recent posts under News & Announcement and Development Media (speaking of which, wouldn't mind some B4 news and announcements...), among other things scattered around the net.