CO_OP/bot lvling ..like 2042

why cant i lvl my weapons in co-op like i did in 2042 not all of us can go  agian hard core players to lvl stuff ...i play only an hour or 2 .... ....going againt HC players im lucky if i get  5 kills .....BRING BACK LVL WITH OFFLINE CO-OP BOTS--------OR GIVE Me AMY **bleep**ING MOENY BACK