All of the game's multiplayer can be completed in about 17 hours
. It takes approximately 15.5 hours to collect the necessary 1,771,100 experience to reach level 60
, and exactly 206,000 salvage to purchase everything
The following 9 achievements require other players, or you can simply boost them. The only achievement that requires ranked matches is I'm All That, so the remainder can be done easily in private matches with friends or boosters.
The Sole Survivor achievement in Tomb Raider worth 25 pointsIn multiplayer, be the only player on your team that isn't dead or incapacitated. The Down Boy! achievement in Tomb Raider worth 28 pointsKill a zip-lining enemy player in multiplayer. The Lights Out achievement in Tomb Raider worth 39 pointsKill 10 multiplayer enemies using your melee attack.
The following two achievements you can do alone in a private match.
The Monkey Around achievement in Tomb Raider worth 49 pointsIn a multiplayer match, escape death 3 times by using the rope ascender.
I disincluded these achievements intentionally:
...because you can't miss them on the way to completing True Commitment.
The solo method for gaining True Commitment is very simple. Play a private Rescue match to the best of 3 rounds (as Tomb Raider is one of those games where you can play a private match by yourself), set the number of medkits to 10, the round time to 5 minutes, and the survivor kills make no difference whatsoever so you can simply leave it at the default. Make certain to select Survivors as your beginning team as well (as once in a while, the game will make you Solarii when you start a match).
In a Survivor round, ignore all the salvage and collect the 10 medkits. The time this takes can vary depending on how often the medkit spawns behind, or in, the wrecked building.
In a Solarii round, ignore the medkit (you can't do anything to it anyway) and collect salvage.
Make sure to vote to play Survivors at the end of the second round, or there is possibility you will have to play Solarii again. After playing the third round, you have gained 31,300 experience and approximately 5750 salvage in 16 minutes.Note: To edit the spreadsheets and keep track of your own progress, use the File > Make a Copy command on each sheet to make changes to your own copy. White boxes are cells you can safely change, while all colored boxes are fixed values or calculations.
I have created a spreadsheet that you can use to get a good idea of the returns you're getting per match:https://docs.google.com/spreadsheet/ccc?key=0AgnyNAkZir1tdE4...
You can fiddle with the number of medkits and the rounds per match, but 10 medkits and 3 rounds has the best returns of any setup. The amount of salvage playing as each side can be fine tuned at the top left. Salvage records can be found on another spreadsheet I have made:https://docs.google.com/spreadsheet/ccc?key=0AgnyNAkZir1tdEl...The General is absolutely not required to gain the Shopaholic achievement
. You will collect enough salvage to buy everything by level 45, though some upgrades are locked through level 58 so it's not particularly worth bothering to buy anything until you hit level 60 and can get Lara.