Dunno why but some of mine items looks "rusty" like this one on picture below.

http://i.imgur.com/3FPheoX.jpg

Here are my cfg commands:
cl_showfps 0
fps_max 0
cl_cmdrate 67
cl_interp .031
cl_interp_ratio 1
cl_lagcompensation 1
cl_pred_optimize 2
cl_smooth 0
cl_smoothtime 0.01
cl_updaterate 67
rate 60000
cl_playerspraydisable 0
r_spray_lifetime 2
mat_shadowstate 1
r_shadowmaxrendered 11
r_shadowrendertotexture 1
r_shadows 1
r_eyes 1
r_flex 1
r_lod 1
r_rootlod 1
r_teeth 1
cl_ragdoll_fade_time 0
cl_ragdoll_forcefade 1
cl_ragdoll_physics_enable 0
g_ragdoll_fadespeed 0
g_ragdoll_lvfadespeed 0
ragdoll_sleepaftertime 0
cl_phys_props_enable 0
cl_phys_props_max 0
props_break_max_pieces 0
r_propsmaxdist 1
violence_agibs 0
violence_hgibs 0
mat_phong 0
cl_detaildist 0
cl_detailfade 0
cl_drawmonitors 0
cl_ejectbrass 0
cl_jiggle_bone_framerate_cutoff 0
cl_new_impact_effects 0
cl_show_splashes 0
func_break_max_pieces 0
glow_outline_effect_enable 0
lod_transitiondist 0
mat_bumpmap 0
mat_colcorrection_disableentities 0
mat_colorcorrection 0
mat_disable_bloom 1
mat_disable_fancy_blending 1
mat_disable_lightwarp 1
mat_envmapsize 8
mat_envmaptgasize 8
mat_filterlightmaps 1
mat_filtertextures 1
mat_forceaniso 0
mat_hdr_level 0
mat_max_worldmesh_vertices 512
mat_monitorgamma 2.0
mat_motion_blur_enabled 0
mat_parallaxmap 0
mat_picmip 2
mat_reducefillrate 1
mat_reduceparticles 1
mat_specular 1
mat_trilinear 0
mat_viewportscale 1
mat_viewportupscale 1
mat_wateroverlaysize 1
mp_decals 9
r_3dsky 0
r_ambientboost 0
r_ambientfactor 0
r_ambientmin 0
r_avglight 0
r_cheapwaterend 1
r_cheapwaterstart 1
r_decals 9
r_maxmodeldecal 9
r_decalstaticprops 0
r_decal_cullsize 15
r_drawdetailprops 0
r_drawmodeldecals 0
r_drawflecks 0
r_dynamic 0
r_flashlightdepthtexture 0
r_forcewaterleaf 1
r_lightaverage 0
r_maxnewsamples 0
r_maxsampledist 1
r_occlusion 0
r_propsmaxdist 0
r_renderoverlayfragment 0
r_staticprop_lod 4
r_waterdrawreflection 0
r_waterdrawrefraction 1
r_waterforceexpensive 0
r_waterforcereflectentities 0
rope_averagelight 0
rope_collide 0
rope_rendersolid 0
rope_shake 0
rope_smooth 0
rope_subdiv 0
rope_wind_dist 0
tf_particles_disable_weather 1
tracer_extra 0
violence_ablood 0
violence_hblood 0
in_usekeyboardsampletime 0
mat_clipz 1
mat_forcehardwaresync 0
mat_levelflush 1
m_rawinput 1
mat_vsync 0
r_fastzreject -1
dsp_enhance_stereo 0
dsp_slow_cpu 1
snd_async_fullyasync 1
snd_pitchquality 0
snd_spatialize_roundrobin 1
snd_mixahead .05
mat_queue_mode 0
cl_threaded_client_leaf_system 0
r_queued_decals 0
r_queued_ropes 1
r_queued_post_processing 1
r_threaded_client_shadow_manager 1
r_threaded_particles 1
r_threaded_renderables 1
net_queue_trace 0
cl_hud_playerclass_use_playermodel 1
hud_saytext_time 10
voice_enable 1
hud_achievement_glowtime 0
hud_achievement_count 0
hud_achievement_tracker 0
cl_localnetworkbackdoor 1
cl_cloud_settings 0
sys_minidumpspewlines 500
cl_loadondemand_default 0
cl_forcepreload 1
cl_ask_blacklist_opt_out 1
cl_ask_favorite_opt_out 1
sb_dontshow_maxplayer_warning 1
tf_explanations_backpackpanel 1
tf_explanations_charinfo_armory_panel 1
tf_explanations_charinfopanel 1
tf_explanations_craftingpanel 1
tf_explanations_discardpanel 1
tf_explanations_store 1
tf_training_has_prompted_for_forums 1
tf_training_has_prompted_for_loadout 1
tf_training_has_prompted_for_offline_practice 1
tf_training_has_prompted_for_options 1
tf_training_has_prompted_for_training 1