The Day of Defeat: Source SMGs for the HL2 SMG.
- M1A1 Thompson (default download)
- M2 Carbine
- MP 40 w/ Unfolded Stock
- MP 40 w/ Folded Stock
- HEV suit or DoD:S arms
- Custom Stats
- Custom Script
Should work in HL2, EP1, EP2, and even Lost Coast without issue.