Destros buddies? Do you mean MARS employees?
If so:
Destro - CEO, 14th Laird of Castle Destro
Baroness - wife or girlfriend or baby mother or whatever.
Darklon - DOA Cousin of the Destro Clan
Voltar - DOA General of Iron Grenadier army
Scrap Iron - MARS weapons tester, anti-tank soldier, left for Cobra
Metal Head - replacement for Scrap Iron after he left to join Cobra
General Meyhem - replacement for Voltar, ex russian officer
Alexander - Destro older son, heir to MARS corp
Vivian - Alexanders woman, Baroness wannabe
Wraith - French guy in super stealth suit
Sgt Major - Leader of Iron Grenadiers wears a kilt sometimes
Iron Grenadier - basic shock troop
Iron Anvil - Viper repaint, airbourne grenadier
TARGAT - Trans Atmospheric Rapid Global Attack something or other
Annihilator - Elite Iron Grenadier with Go Go Gadget copter on back
Wild Boar - Razorback Driver
Ferret - DEMON Driver
Nullifier - AGP pilot
Undertow - MARS SEAL with pet fish
Groundskeeper Willie - Chuckles in disguise, ya cheese eatin' surrender monkeys!
Vehicles:
Despoiler
DEMON
Razorback
AGP
Dominator (2 styles)
Evader
if I forgot anyone, I am sorry.