just keep playing it doesn't take that long to get
you also need to get a skill of 10 to unlock it.
in game types there are ranks and skill. you have to get your rank in any lobby to liutenant (around 50xp) this will unlock 2 acheivments "lightswitch" and "spartan officor" you cannot get them seperatly since they introduced the new in lobby ranking system thanks joe
you need to have 100 exp and 10 skill level to become a lieutennant (officer) on halo 3
Physical strength and military skill
katlyn and gabriella
Officer ranks require you to have a certain XP and highest skill level. For example, to get to the first officer rank, Lieutenant, you need 70 XP and a highest skill of 10. Without the 10 skill, you'd still be a Gunnery Sergeant. To be a 5-star General, you need 5000 XP and a highest skill of 50. If you had 5000 XP, but a highest skill lower than 10, you'd still be a Gunnery Sergeant.
It depends on your level of skill and achievement. They can last from 30 minutes to as long as 4 hours or more. It also depends on the school or studio you learn dance at.
To get the spelunker achievement, you need to reach the bottom of any world.Easy, right? Wrong.New players have a low mining skill and are unable to mine down too deep into the worlds. So the average player will be spending time levelling up their mining skill to achieve this. Unless you have a high-level friend who can mine down for you as you follow.
communication
An achievement means doing something successfully. Usually the term is used when the achievement required skill, bravery or extreme effort.
"Our best" typically refers to the highest level of effort, performance, or achievement that an individual or group is capable of. It signifies giving one's utmost dedication, focus, and skill to a task or goal.
Get level 99 in a skill, then talk to the skill master.