Halo 3 bonus mission?

[David C]

i was told by a friend that once uv found and read all 7 terminals, that you unlock a bonus mission called 'Final Grave'. is this true or is it just something random like silver and gold skulls. if it is true, what do you do, where is it and who do you play as. much obliged

 

[rragsdaleii]

Not true. You get an achievement called "marathon man" worth 40 points but that's all.

 

[dragon892007]

i have not heard of this and i have unlocked all skulls and read all terminals i have not seen this mission on mine but you do get a marathon man achievement by reading all 7 terminals

 

[Robert T]

Not that i know of. i could b wrong. go on youtube and type in the mission name.

 

[ya.mf2x]

Nope. You do get an achievement, and maybe unlock some more armor, but that's it.