Ive had the same issue, i got this line of code. And zombies is in my taskbar.
Could not load image "streaming_temp_image_0".
Could not load image "streaming_temp_image_1".
Could not load image "streaming_temp_image_2".
Could not load image "streaming_temp_image_3".
Could not load image "streaming_temp_image_4".
Could not load image "streaming_temp_image_5".
Could not load image "streaming_temp_image_6".
Could not load image "streaming_temp_image_7".
Could not load image "streaming_temp_image_8".
Could not load image "streaming_temp_image_9".
Could not load image "streaming_temp_image_10".
Could not load image "streaming_temp_image_11".
Could not load image "streaming_temp_image_12".
Could not load image "streaming_temp_image_13".
Could not load image "streaming_temp_image_14".
Could not load image "streaming_temp_image_15".
Could not load image "streaming_temp_image_16".
Could not load image "streaming_temp_image_17".
Could not load image "streaming_temp_image_18".
Could not load image "streaming_temp_image_19".
Could not load image "streaming_temp_image_20".
Could not load image "streaming_temp_image_21".
Could not load image "streaming_temp_image_22".
Could not load image "streaming_temp_image_23".
Could not load image "streaming_temp_image_24".
Could not load image "streaming_temp_image_25".
Could not load image "streaming_temp_image_26".
Could not load image "streaming_temp_image_27".
Could not load image "streaming_temp_image_28".
Could not load image "streaming_temp_image_29".
Could not load image "streaming_temp_image_30".
Could not load image "streaming_temp_image_31".
Could not load image "$lineargray".
Could not load image "$blacktransparent".
Could not load material "debug_sphere_exterior".
Could not load material "debug_sphere_interior".
Could not load material "$floatz_donotremove".
Could not load material "$processed_floatz_donotremove".
Could not load material "$ps3_aadownsample_donotremove".
Could not load material "zombie_darkness".
Could not load material "mc/rope".
Could not load material "bloom_apply_thermal".
Could not load material "$ps3_reload_zcull_donotremove".
Could not load material "mc/mtl_predator".
Could not load stringtable "mp/gunlevels.csv".
Could not load stringtable "mp/unlockmapping.csv".