I installed SMAC on my Linux Dedicated Server yesterday, everything was just working fine with SMAC itself.
When I installed SMAC, and loaded up as Sniper, I was welcomed with a Rifle in my hand, instead of my bow and arrow. The canteen wasn't equipped either.
I have only a few basic plugins because I reinstalled the server, and started fresh again. I tested both plugins individually (Admin Chat, Infinite Ammo) and none of the two caused the item server issue.
When I disabled SMAC, restarted everything, I was faced with my bow & arrow again.
SourceMod Version
v1.6.0 dev 4088
MetaMod Version
v1.11.0 dev 855
SMAC Version
v0.8.5.1
SMAC Plugin Files Installed:- smac.smx
- smac_aimbot.smx
- smac_autotrigger.smx
- smac_client.smx
- smac_commands.smx
- smac_css_antiflash.smx
- smac_css_antismoke.smx
- smac_css_fixes.smx
- smac_cvars.smx
- smac_eyetest.smx
- smac_hl2dm_fixes.smx
- smac_l4d2_fixes.smx
- smac_rcon.smx
- smac_speedhack.smx
TL;DR Version
SMAC disables TF2 item server on Linux. No other plugin caused it.