Maps I recommend we can try:
cs_harvest (large open areas, not a lot of camping spots)
de_dust2_night (same thing, but the environment is a lot darker)
de_season
de_tuscan
de_cpl_mill
de_cpl_fire
de_scorch
cs_eaglerockhotel (HUGE map, and it's really cool)
cs_jungle
de_mw2_terminal_beta
de_ravenholm (made for mods like ZH, small, and brutal, but fun. Highly recommended)
de_russka
cs_hockey (it's basically a hockey arena)