well...we know every Cf player suffers from that Bm thing and spending tons of Gp/Zp and wining nothing!!!??
Since i tried tons of crates too, my best chances in wining were in uk2.
it may sound awkward but last week i won 2 Bm wps in 30 mins TRG which took me 9 crates and Galil silenced which took me 12 crates
i've tried theese weps in uk 4 , spent hundreds of gp and then i won them in uk2 , my friend also won a TRG and a Tommie in uk2
this may be bull.sh1t but it works for me......