Instructions
Launch "Combat Arms" as you normally would. Select a server and channel to gain access to the "Shop" tab. Once the tab is no longer grayed out, click it to open the shop.
Click the "Premium" tab in the shop window on the right half of your screen. Click the "Supply Case" sub-tab. Review the list of available crates. Ones with the orange "NX" symbol require NX, while cases with a "GP" value require the indicated amount of GP.
Click the crate you'd like to give to a friend. Click "Gift," near the bottom of the window and next to the "Buy" button.
Enter the player's "Combat Arms" name into the "Recipient" box, and click "Check" to ensure you've entered his name correctly. Click the "Usage Time" drop-down menu to change the number of crates you gift; the more crates, the more you will need to pay.
Type a message into the "Gift Message" box if you desire. Click "OK" and "Yes" on the confirmation message. You'll see a notification telling you the gift was sent.