Fix for the Triple Threat's world model not working properly when used by an AI opponent

[GalacticMoblin]

Recompiled and edited the Triple Threat's world model to fix an unhandled animation event error

How to easily replicate the issue solo:

• Bring down a titan and enter it
• use sv_cheats 1 and give mp_titanweapon_triple_threat to give your titan the Triple Threat
• exit your titan, aim at your titan and use ent_fire !picker setteam 2 to set it to the opposite team
• Let it (attempt to) shoot you with the Triple Threat

(Issue also occurs if you use the Triple Threat world model on any other gun)

Closes #606

[ASpoonPlaysGames]

Not adding "needs code review" because this is just a binary file change

[Alystrasz]

Updated testing instructions

While in your titan:

1. script TakeAllWeapons(GetPlayerArray()[0]);
2. give mp_titanweapon_triplethreat.

Media

Before PR

My auto-titan would look at me and do nothing.

After PR

My auto-titan would fire grenades at me (doing no damage though, because it's my titan I guess).