Infantry upgrades from both sides = Wub. Though, why Khufu went for Tiberium Infusion but at the same time ignored the Confessors is just totally beyond me.
Crunk, next time you're faced with this kind of fully upgraded Raider Buggy quasi-spam, you should consider getting Zone Troopers in APCs. ZTs in APCs have a way of outranging a lot of things including Buggies, and I also was under the impression that infantry inside an APC can still fire out even if that APC has been successfully hit by an EMP blast. The ZTs will shred Buggies while remaining shielded from the anti-infantry lasers while inside those APCs. You'll get good mobility and basic anti-air from this to boot.
One other thing-- if he starts to combine those Buggies with Stealth Tanks (which a Nod player always should do in my judgment), get both the Scanner Packs and Power Packs upgrade for the Zone Troopers, and you'll be able to unload them from the APCs and have them handle Stealth Tanks independently very well, even if they have the Tiberium Core Missiles upgrade. The fact of the matter is that in 1.01, Power Packs are now providing a significantly higher HP boost to the Zone Troopers than they used to do. I'm quite convinced that at this moment of writing, the true scope of these new Power Packs' benefits have yet to be fully explored by GDI players.