You can download all the owps here.

Map Name	Author
flf_afghan	Madcat
flf_ascension	unknown
flf_bier	unknown
flf_biohazard	unknown
flf_bridge	unknown
flf_chion	unknown
flf_cyprus	unknown
flf_deep6	unknown
flf_dlord	Madcat
flf_fox	unknown
flf_heatwave	unknown
flf_hill	bluto
flf_icehammer	unknown
flf_job	unknown
flf_kezman	unknown
flf_lombardi	unknown
flf_lombardi_deluxe	bluto
flf_mountain	unknown
flf_qcity	Madcat / bluto
flf_rage	unknown
flf_risu (not done)	Madcat
flf_rmego (not done)	Madcat
flf_snow	unknown
flf_solomon	bluto
flf_storm	bluto
flf_village	unknown
flf_winternuke	Madcat
osaka	unknown