Im at the fourth or so level, 'research' level. I've just got the key card and entered the cave part. Up in the little hut earlier I saw a torch on the table, a little icon came up above my amo status of the torch with an x on it, how come I cant pick up the torch?? I know how to throw grenades, cycle grenades, weapons, drop/swap weapons, but i dont understand how to pick up other items like other binocs that i see around or this torch. Please help.