Maintenance for the week of September 30:
• [COMPLETE] Xbox: NA and EU megaservers for patch maintenance – October 2, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
• [COMPLETE] PlayStation®: NA and EU megaservers for patch maintenance – October 2, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
Are you both on the same platform? Meaning that you are both on either PC, XBox One, or PS4? If you are on XBox, and your friend is on PS4, you won't see them, as this game is not cross-platform.
Would likely be helpful for each of you to say exactly which platform you are on, and which server. I'm not the most tech savvy guy, but I am betting that knowing those details would help people give you suggestions to fix this.