Overflow on m_szTeamName after setting a model longer than 15 chars (teamplay)

[Th3-822]

Tested on DMC and OpForce too

• Start a server (listenserver works too) with "Teamplay" enabled (mp_teamplay 1) and "Valid teams" empty (mp_teamlist "")
• Check model & team from server's console with "user " (should be "user 1" as there aren't any other players)
• Change model to anything over 15 characters
• Check model/team again, you will see the model/team cropped to 16 chars and m_szAnimExtention concatenated to it

[Th3-822]

Btw, this also happens on half-life as it's the base game, so it needs the hl label too