Coins and the group perk
The core loop described for dogs is to survive rounds, earn coins, and buy tools. The game description is reported to advertise a 1.2x coin bonus for joining the AZOT Roblox group. This is a group membership perk, not a promo code or a free weapon.
The lobby shop is the source of current item names and prices. No stable, independently verified complete price table was found for this guide. Read the live button before buying, especially after an update.
Buy for your current bottleneck
Start with an affordable tool you will actually select and use. Test it in an ordinary round and notice whether it helps with the distance or situation that caused your last loss. One familiar tool is more useful than saving indefinitely for an expensive item you cannot yet use well.
The user-owned guide mentions a mine gun and an M249 as examples of later shop goals. Their price, stats, and current availability are not independently confirmed here, so treat them as examples rather than a required progression order.
Keep currency types separate
Coins buy shop tools. The reference guide discusses Fate as a Robux chance connected with Juggernaut attempts; it is separate from the tool shop. Read the currency and result on the Roblox prompt before confirming any purchase.
If a shop purchase does not appear in your hotbar, re-check the lobby inventory and current UI before spending again. Do not rely on a clip recorded on an earlier build.