SAS: Zombie Assault 3 app

A lot of little common sense things need to be fixed SAS zombie assault 3 apk game . Why does a private match automatically start when one friend joins? I have to have all my friends time their join or else it starts and the rest can't join. Also, why can't we all go back to the game lobby after a private match? Why does it kick us all the way back so that we have to create a new match with a new code? These are just the most prominent things. Work out these kinks and it'll be a great game!

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5-star zombie-shooting awesomeness and co-op multiplayer!
Elite SAS operatives handle the darkest missions, the worst hot zones - things we are not meant to know. Inserted without backup, either alone or as a 4 person squad, you will be sought by the walking dead, by hordes of unspeakable numbers. Your only option - paint the ground with every last one of them.
From the creators of Bloons TD 5, comes the best co-op shooter on Android! Rank up 50 times and unlock awesome weapons and perks with every rank. Dozens of guns and special weapons, 17 unique maps, and hundreds of zombies on screen at a time.
And that's just single player! Play co-op multiplayer at any time with super-easy matchmaking geared to your level. Huge fun to jump into a game at the same time with friends, and doesn't matter what device you have - Android and iOS users can seamlessly play together.
Based on the ground-breaking flash game by Ninja Kiwi, but completely rebuilt and optimized for Android, SAS 3 has been battle hardened by millions of plays and undergone extensive tuning and balancing to create the best action shooter available on the Play Market!
Killer Features:
★ Intense zombie-blasting action shooter gameplay!
★ Eviscerate the zombie hordes in single player or in 4 player co-op multiplayer
★ 50 Ranks to unlock, each granting access to a new weapon or perk
★ 44 devastating weapons like Auto Shotguns, Browning Machine Guns, Flamethrowers, and RPGs
★ 2 Sentry gun classes and 3 grenade types for serious room clearing
★ 17 challenging maps, each with very different hazards and kill zones
★ 12 relentless zombie types, with graphics that support hundreds on screen
★ 3 vicious game modes - Onslaught, Purge, and Apocalypse
★ Multiplayer play from (almost) anywhere in the world

I usually don't give 5* for SAS: Zombie Assault 3 games but this is one of the very best free to play games I have ever played. For anyone unsure of what type of game this is, it is a twin stick shooter not unlike Geometry Wars. For anyone unfamiliar with that genre, you use left stick to move and right stick to shoot in desired direction. As you play you unlock Experience and $. Exp will cause you to level up and unlock new items. $ is the currency to buy said items. It is refreshing to have 1 single currency in a free game!