Hello there!
I've installed your plugin and saw errors:
L 12/20/2018 - 15
0:44: -------- Mapchange to c1m1_hotel --------
L 12/20/2018 - 15
0:44: [SM] Unable to load plugin "new_ammo_packs-l4d2.smx": Native "L4D2_SpawnTank" was not found
L 12/20/2018 - 15
0:44: [SM] Unable to load plugin "new_ammo_packs-l4d2_airstrike.smx": Could not find required plugin "nap-l4d2_helpers"
Version of SM and MM
SourceMod Version: 1.9.0.6261
Metamod:Source version 1.10.7-dev
P.S I can send list of plugins if you need,thanks)