Here is all the maps which ones are really bad and what ones should go in the rtv list so that you can play them more:
zm_ATIX_helicopter
zm_420_breeze
zm_aftermatch_fixed
zm_fortress_b4
zm_ghs_officepanic
zm_ghs_office_outbreak
zm_labor_gigantic
zm_lab_panic_b_4
zm_lila_panic
zm_lila_panic_redemption_beta
zm_lila_panic_v2
zm_ruined_town_v1_toiletfix
zm_ruined_town_v3
zm_scrapyard_b3
zm_snoopie_711_final_fixed1
zm_tension_tf2_vx
zm_towers_hdr_final
zm_tx_highschoolbeta7
zm_wintercomplex_b1
Abandoned_ProjectsV01
zm_resort_final
zm_vc2_citybrawl_b1
zm_vc2_lila_off!ce
zm_vc2_officeattack_b5a
zm_vc2_officerampageb8
zm_spacestationflee_v2_fix
zm_Fidlers-Green_b2
zm_escape_bridge_v1d
zm_island_defense_v2
zm_bda_neighborhood_v1
zm_App7e_BworldFinal
zm_4way_tunnel_v2
zm_4ngry_quaruntine
zm_boatescape5_remix
zm_ocx_orly_v4
zm_roy_the_ship
zm_roy_old_industrial
zm_office_unlimited_fixed
zm_vc2_horrortown_fixed_final
zm_vc2_ka_cssmc_zombie_beta6
zm_vc2_office_redone_b1
zm_vc2_officerampageb8_fix
zm_desolo
zm_radikal_stronghold_b1
zm_vc2_lila_town
zm_vc2_orangeskyhigh
zm_vc2_scrapyard
zm_vc2_winterfun
zm_vc2_pitch_b4
zm_roy_abandoned_canals_new
zm_echo_crisis_b1
zm_city_graveyard
zm_panic
zm_clocks_final
zm_cliffside_horror_v2c
ze_icecave_escape_fixed
ze_trainescape_b3
ze_rooftop_runaway2_v4
ze_elevator_escape_v3
ze_jurassicpark_v2
zm_moonlight
zm_umbrella_corp
zm_subway
ze_canal_escape