HOUR OF VICTORY BOOSTING 

There are only three multiplayer achievements that don't require the match to be ranked. As for the ranked you will need at least a group of six as you will need to have at least three on each team.

MULTIPLAYER ACHIEVEMENTS

Play Multiplayer - 20 points

Complete a Multiplayer Game

Play all Multiplayer Modes - 40 points

Complete a game in all Multiplayer Modes

Good Citizen - 20 points

Host active multiplayer games for 20 hours

First Place - 30 points

Place first in a ranked match, all three game types

Fight the Good Fight - 25 points

Place first in a multiplayer game on the losing team

Demolitions Expert - 25 points

Destroy 25 Targets in Devastation ranked matches

Heroic Defender - 30 points

Save 50 flags in Capture the Flag ranked matches

Silver Medal - 20 points

Capture 25 flags in Capture the Flag ranked matches

Juggernaut - 25 points

Kill 100 enemies in ranked matches

Whites of Their Eyes - 30 points

Kill 10 enemies in a row in a ranked match without dying

Bomb Squad - 30 points

Disarm 50 bombs in Devastation ranked matches