Well I'm only on my second run into the game (never finished the 1st one as the computer...died

) and I'm playing on medium difficulty. Knowing myself I won't have played that 'high' the first time but I wasn't missing any items back then as far as I know. I had X-Com-manufactured armour, toxiguns with c toxins, cloaking fields, disruptor shields, loads of insane flyer-weapons... I really doubt that there'd be fewer items in lower difficulty levels. If there was a rule like that, it would work the other way around, anyway... and I'm still missing the C-toxin... now you've got me really worried :crazy:
P.S.: Just realised something: Do you mean that with a lower difficulty level you get less loot? That might be possible if only because there'd be fewer aliens / mission and they'd have 'lighter' equipment. (Take my last psicontrol-victim for example: He had a devestator and 4 (!) Boomeroids on him. Well, 0.25 Seconds later he and 3 of his colleagues went out with an amazing quadruple-explosion but that's beside the point. Maybe on your difficulty level he would have had only 2 boomeroids and would have to be satisfied with a mere big explosion to perish in instead of very ugly and nasty explosion like I could offer. So you see, aliens, if you want to die properly come to me and I guarantee you the death of a lifetime! No refunds!