4Game

OP NOTE: Whoops! As u/TragicvLoss pointed out, am missing a pair of missions for 100 Stamps each. Will rework all this and post again later. Thank you for your catch!

TL;DR: Just playing daily nets you the Tier III reward. Playing 20 matches either at the tier 2-8 or tier 9-10 for most of the event will net you the tier IV and V rewards.

New event time! Breakpoints are the following, with no restriction on winning/losing but to be in the Top 10 of your team:

• 700: Consumables, Progression, and Customization
• 1400: Consumables, Equipment, and Customization
• 2100: Consumables and Fragments
• 2600: Equipment, Slots+Premium, and Crew
• 3000: Premium, Tank (T-34-85M) and Tank (STRV M/42-57)

Missions per tier break-up are:

Play 1 battle, tier 2 and above:

• 100 Stamps for 1 battle

Play 1 battle, tier 2 and above, verified military members only

• 100 Stamps for 1 battle

Tier 2-8:

• 10 Stamps for 10 Battles in Top 10
• 20 Stamps for 20 Battles in Top 10
• 30 Stamps for 30 Battles in Top 10
• 60 Stamps total for 30 Battles in Top 10

Tier 9-10:

• 20 Stamps for 10 Battles in Top 10
• 30 Stamps for 20 Battles in Top 10
• 40 Stamps for 30 Battles in Top 10
• 90 Stamps total for 30 Battles in Top 10

Estimating 7min average survival time and that you're getting into the top 10 about 66% of the time (numbers purely for calculation; feel free to wrangle them as appropriate). Also that you aren't military. Keep in mind that you accomplish the 10- and 20-battle missions by the time you finish the 30-battle one, so you only need to calculate the time take on the last one to gain all previous Stamp rewards:

• 1 battle at tier 2+ = 100 Stamps
• 30 battles in Top 10 / 0.66 = 45 battles rounded
• 45 battles at 7 min each = 5.25 hours played per tier break-up
• 2 tier break-ups per day (at 150 Stamps total) at 5.25 hours each = 10.5 hours daily
• 150 Stamps daily for 10.5 hours of play
• 250 Stamps daily for 10.5 hours of play, including the initial mission
• 190 Stamps daily for 5.25 hours of play, including the initial mission (tier 9-10)
• 160 Stamps daily for 5.25 hours of play, including the initial mission (tier 2-8)

Event runs from Mar 5 to Mar 29.

For doing both tier-battles per day (10.5h). Day values rounded up:

• 24 day run total at 250 Stamps daily
• 12 days for 250 Stamps per day = 3000 Reward level
• 11 days for 250 Stamps per day = 2600 Reward level
• 9 days for 250 Stamps per day = 2100 Reward level
• 6 days for 250 Stamps per day = 1400 Reward level
• 3 days for 250 Stamps per day = 700 Reward level

For doing just the tier 9 tier-battle per day (5.25h). Day values rounded up:

• 24 day run total at 190 Stamps daily
• 16 days for 190 Stamps per day = 3000 Reward level
• 14 days for 190 Stamps per day = 2600 Reward level
• 11 days for 190 Stamps per day = 2100 Reward level
• 8 days for 190 Stamps per day = 1400 Reward level
• 4 days for 190 Stamps per day = 700 Reward level

For doing just the tier 2 tier-battle per day (5.25h). Day values rounded up:

• 24 day run total at 160 Stamps daily
• 19 days for 160 Stamps per day = 3000 Reward level
• 17 days for 160 Stamps per day = 2600 Reward level
• 14 days for 160 Stamps per day = 2100 Reward level
• 9 days for 160 Stamps per day = 1400 Reward level
• 5 days for 160 Stamps per day = 700 Reward level

For doing one battle, tier 2+, per day (7min). Day values rounded up:

• 24 day run total at 100 Stamps daily
• Not possible = 3000 Reward level
• Not possible = 2600 Reward level
• 21 days for 100 Stamps per day = 2100 Reward level
• 14 days for 100 Stamps per day = 1400 Reward level
• 7 days for 100 Stamps per day = 700 Reward level

Note: This only covers missions run out of TankRewards.com, and not any of the extra ones that should be added within the game (like the upcoming one for 200 Stamps in 3 days time).